Quiz - biology - Locomotion and Movements-AI Generated

Q1. Q1: Which of the following statements is correct regarding locomotion in living beings? Source: orcusprep.in

NCERT INDEPTH

easy

All movements are locomotions

All locomotions are movements

Locomotion and movements are unrelated

Locomotion occurs only in animals

Q2. Q2: In unicellular organisms like Amoeba, the streaming of protoplasm is an example of: Source: orcusprep.in

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easy

Locomotion

Movement

Reproduction

Respiration

Q3. Q3: Which structure in Paramoecium helps both in locomotion and in feeding? Source: orcusprep.in

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medium

Cilia

Flagella

Tentacles

Lips

Q4. Q4: Hydra uses its tentacles for: Source: orcusprep.in

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medium

Capturing prey only

Locomotion only

Both capturing prey and locomotion

Respiration

Q5. Q5: Which of the following is an example of voluntary locomotory movement in humans? Source: orcusprep.in

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easy

Blinking of eyelids

Movement of tongue

Walking

Circulation of blood

Q6. Q6: The primary purposes of locomotion in animals include: Source: orcusprep.in

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medium

Searching for food and shelter

Escape from predators

Finding mates and suitable breeding grounds

All of the above

Q7. Q7: Which of the following is NOT a locomotory movement? Source: orcusprep.in

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hard

Walking

Running

Blinking of eyelids

Swimming

Q8. Which of the following human cells exhibit amoeboid movement? Source: orcusprep.in

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hard

Macrophages and leucocytes

Epithelial cells

Muscle cells

Neurons

Q9. Amoeboid movement is effected by: Source: orcusprep.in

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hard

Cilia

Pseudopodia

Flagella

Microvilli

Q10. Which statement is correct regarding ciliary movement in humans? Source: orcusprep.in

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hard

Ciliary movement occurs in limbs and muscles

Ciliary movement helps in removal of dust in trachea and ova transport in female reproductive tract

Ciliary movement is involved in locomotion

Ciliary movement occurs in red blood cells

Q11. Muscular movement in humans is used for: Source: orcusprep.in

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hard

Movement of limbs, jaws, tongue, etc.

Circulation of blood

Absorption of nutrients

Photosynthesis

Q12. Which system is NOT directly involved in locomotion? Source: orcusprep.in

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hard

Muscular system

Skeletal system

Neural system

Digestive system

Q13. Select the correct combination of types of movements in human cells: Source: orcusprep.in

NCERT INDEPTH

hard

Amoeboid, Ciliary, Muscular

Amoeboid, Flagellar, Muscular

Ciliary, Muscular, Skeletal

Amoeboid, Muscular, Skeletal

Q14. Identify the INCORRECT statement: Source: orcusprep.in

NCERT INDEPTH

hard

Amoeboid movement involves microfilaments

Ciliary movement occurs in trachea and female reproductive tract

Muscular movement is not used in locomotion

Muscular, skeletal, and neural systems coordinate in locomotion

Q15. How does ciliary movement help in the respiratory system? Source: orcusprep.in

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hard

By circulating blood

By removing dust particles and foreign substances from trachea

By aiding in digestion

By controlling heartbeat

Q16. Match the type of movement with its example using the table:

Type	Example
Amoeboid	?
Ciliary	?
Muscular	?

Source: orcusprep.in

NCERT INDEPTH

hard

Amoeboid - Macrophages, Ciliary - Trachea, Muscular - Limbs

Amoeboid - Cilia, Ciliary - Muscle, Muscular - Leucocytes

Amoeboid - Muscle, Ciliary - Macrophages, Muscular - Trachea

Amoeboid - Limbs, Ciliary - Limbs, Muscular - Tongue

Q17. Which cytoskeletal elements are involved in amoeboid movement? Source: orcusprep.in

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hard

Microtubules

Intermediate filaments

Microfilaments

Centrioles

Q18. Which of the following requires perfect coordination for locomotion? Source: orcusprep.in

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hard

Muscular contraction only

Skeletal system only

Muscular, skeletal, and neural systems

Ciliary movement only

Q19. Statement 1: Amoeboid movement is seen in leucocytes.
Statement 2: Amoeboid movement is mediated by flagella.
Which is correct? Source: orcusprep.in

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hard

Both statements are correct

Statement 1 is correct, Statement 2 is incorrect

Statement 1 is incorrect, Statement 2 is correct

Both statements are incorrect

Q20. Statement 1: Ciliary movement helps in passage of ova.
Statement 2: It occurs in internal tubular organs. Source: orcusprep.in

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hard

A) Both correct

B) Statement 1 correct, Statement 2 incorrect

C) Statement 1 incorrect, Statement 2 correct

D) Both incorrect

Q21. Which movement type primarily involves contractile properties of muscles? Source: orcusprep.in

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hard

Amoeboid movement

Ciliary movement

Muscular movement

Flagellar movement

Q22. Which of the following is TRUE for locomotion in humans? Source: orcusprep.in

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hard

It is solely dependent on muscular system

It requires coordination between muscular, skeletal, and neural systems

It occurs due to ciliary movement in limbs

It is independent of nervous system

Q23. Statement-based: Identify correct statements.
1. Amoeboid movement involves streaming of protoplasm.
2. Ciliary movement occurs in limbs.
3. Muscular movement is used in jaws and tongue.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

hard

1 and 2

1 and 3

2 and 3

All 1, 2, 3

Q24. Muscle tissue is derived from which germ layer? Source: orcusprep.in

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easy

Ectoderm

Mesoderm

Endoderm

Both ectoderm and mesoderm

Q25. Approximately what percentage of human adult body weight is contributed by muscles? Source: orcusprep.in

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easy

10-20%

20-30%

40-50%

60-70%

Q26. Which of the following is NOT a characteristic property of muscles? Source: orcusprep.in

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medium

Excitability

Contractility

Extensibility

Photosensitivity

Q27. Which type of muscle is striated and under voluntary control? Source: orcusprep.in

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easy

Skeletal muscle

Visceral muscle

Cardiac muscle

None of these

Q28. Where are visceral muscles primarily located? Source: orcusprep.in

NCERT INDEPTH

easy

Heart

Alimentary canal and other hollow organs

Skeletal muscles

Skin

Q29. Cardiac muscles are: Source: orcusprep.in

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easy

Striated and voluntary

Smooth and voluntary

Striated and involuntary

Smooth and involuntary

Q30. Which connective tissue layer surrounds an entire skeletal muscle? Source: orcusprep.in

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medium

Epimysium

Perimysium

Endomysium

Fascia

Q31. The plasma membrane of a muscle fiber is called: Source: orcusprep.in

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easy

Sarcolemma

Sarcoplasm

Sarcoplasmic reticulum

Myofibril

Q32. The cytoplasm of a muscle fiber is called: Source: orcusprep.in

NCERT INDEPTH

easy

Sarcolemma

Sarcoplasm

Sarcoplasmic reticulum

Myofibril

Q33. Why is a muscle fiber called a syncytium? Source: orcusprep.in

NCERT INDEPTH

medium

It has multiple nuclei

It is single-celled

It lacks a plasma membrane

It is non-contractile

Q34. Which organelle stores calcium ions in muscle fibers? Source: orcusprep.in

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medium

Mitochondria

Nucleus

Sarcoplasmic reticulum

Ribosome

Q35. Myofibrils are composed of repeating units called: Source: orcusprep.in

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easy

Myofilaments

Sarcomeres

T-tubules

Sarcolemma

Q36. Which protein forms the thin filaments of myofibrils? Source: orcusprep.in

NCERT INDEPTH

easy

Actin

Myosin

Tropomyosin

Troponin

Q37. Which protein forms the thick filaments of myofibrils? Source: orcusprep.in

NCERT INDEPTH

easy

Actin

Myosin

Tropomyosin

Troponin

Q38. The central part of the A-band not overlapped by thin filaments is called: Source: orcusprep.in

NCERT INDEPTH

medium

H-zone

I-band

Z-line

M-line

Q39. The Z-line bisects which band? Source: orcusprep.in

NCERT INDEPTH

medium

A-band

I-band

H-zone

M-line

Q40. Thick filaments are held together in the middle of A-band by: Source: orcusprep.in

NCERT INDEPTH

medium

Z-line

M-line

H-zone

I-band

Q41. Skeletal muscles are primarily involved in: Source: orcusprep.in

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easy

Digestive processes

Locomotion and changes of body posture

Hormone secretion

Transport of blood

Q42. Which of the following statements is TRUE regarding cardiac muscle? Source: orcusprep.in

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medium

It is voluntary and striated

It is involuntary and smooth

It is involuntary and striated

It is voluntary and smooth

Q43. Which of the following statements is INCORRECT regarding visceral muscle? Source: orcusprep.in

NCERT INDEPTH

medium

It is smooth

It is involuntary

It is striated

It helps in transportation of food

Q44. Match the following components of skeletal muscle with their correct description:

Component	Description
1. Sarcomere	A. Plasma membrane of muscle fiber
2. Sarcolemma	B. Functional unit of contraction
3. Myofibril	C. Parallelly arranged filaments in sarcoplasm
4. Sarcoplasm	D. Cytoplasm of muscle fiber

Source: orcusprep.in

NCERT INDEPTH

easy

1-B, 2-A, 3-C, 4-D

1-C, 2-B, 3-A, 4-D

1-D, 2-C, 3-B, 4-A

1-A, 2-B, 3-C, 4-D

Q45. Assertion (A): Skeletal muscles are voluntary and striated.
Reason (R): Their contraction is regulated by autonomic nervous system.
Choose the correct option: Source: orcusprep.in

NCERT INDEPTH

easy

A) A is correct, R is correct and R explains A

B) A is correct, R is correct but R does not explain A

C) A is correct, R is incorrect

D) Both A and R are incorrect

Q46. Consider the following statements about myofilaments:
1. Actin is thicker than myosin.
2. Myosin forms the A-band.
3. Z-line bisects the I-band.
Select the correct combination: Source: orcusprep.in

NCERT INDEPTH

easy

Only 1 and 2 are correct

Only 2 and 3 are correct

Only 3 is correct

2 and 3 are correct; 1 is incorrect

Q47. Table-based reasoning: Identify which muscle type corresponds to each feature:

Feature	Muscle Type
Striated and voluntary	?
Involuntary, smooth	?
Striated, involuntary, heart	?

Source: orcusprep.in

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easy

Skeletal; Visceral; Cardiac

Skeletal; Cardiac; Visceral

Visceral; Skeletal; Cardiac

Cardiac; Visceral; Skeletal

Q48. Assertion (A): Sarcomere length changes during contraction.
Reason (R): H-zone shortens while A-band remains constant.
Choose the correct option: Source: orcusprep.in

NCERT INDEPTH

easy

A) A correct, R correct and explains A

B) A correct, R correct but does not explain A

C) A correct, R incorrect

D) Both incorrect

Q49. Statement-based: Identify correct statements:
1. Muscle fibers are multinucleated.
2. Sarcoplasmic reticulum stores sodium ions.
3. Myofibrils are composed of actin and myosin filaments.
Select correct statements: Source: orcusprep.in

NCERT INDEPTH

easy

1 and 2 only

1 and 3 only

2 and 3 only

All 1,2,3

Q50. Diagram-based: The M-line holds which of the following together?

Structure	Location
Thick filaments	?

Source: orcusprep.in

NCERT INDEPTH

easy

Middle of A-band

Center of I-band

At Z-line

Throughout sarcomere

Q51. High-order match: Connect structural feature to functional implication:

Feature	Function
Elastic Z-line	?
Sarcoplasmic reticulum	?
Syncytial muscle fiber	?

Source: orcusprep.in

NCERT INDEPTH

easy

Z-line provides elasticity; SR stores calcium; syncytium allows coordinated contraction

Z-line stores calcium; SR provides elasticity; syncytium stores energy

Z-line anchors thick filaments; SR anchors thin filaments; syncytium is multinucleated

None of the above

Q52. Assertion (A): Thick filaments overlap thin filaments in A-band.
Reason (R): This arrangement gives striated appearance.
Choose the correct option: Source: orcusprep.in

NCERT INDEPTH

easy

A) Both A and R correct and R explains A

B) Both A and R correct but R does not explain A

C) A correct, R incorrect

D) Both incorrect

Q53. Statement-based: Identify TRUE statements:
1. Cardiac muscle cells are branched.
2. Skeletal muscle fibers are uninucleated.
3. Visceral muscles are involuntary.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

easy

1 and 2

1 and 3

2 and 3

All 1,2,3

Q54. Table-based reasoning: Match the muscle type with its nervous control and striation:

Muscle Type	Nervous Control	Striation
Skeletal	?	?
Visceral	?	?
Cardiac	?	?

Source: orcusprep.in

NCERT INDEPTH

medium

Skeletal-Somatic-Striped; Visceral-Autonomic-Smooth; Cardiac-Autonomic-Striped

Skeletal-Autonomic-Striped; Visceral-Somatic-Smooth; Cardiac-Autonomic-Smooth

Skeletal-Somatic-Smooth; Visceral-Autonomic-Striped; Cardiac-Autonomic-Striped

Skeletal-Autonomic-Smooth; Visceral-Somatic-Striped; Cardiac-Somatic-Striped

Q55. Assertion (A): Sarcomere shortens during contraction.
Reason (R): Actin slides over myosin filaments.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

medium

A) Both A and R correct and R explains A

B) Both correct but R does not explain A

C) A correct, R incorrect

D) Both incorrect

Q56. Statement-based: Identify correct statements:
1. Myofibrils contain alternating A and I bands.
2. H-zone is overlapped by actin in resting state.
3. M-line stabilizes thick filaments.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

medium

1 and 2

1 and 3

2 and 3

All 1,2,3

Q57. Table reasoning: Identify correct functional association:

Structure	Function
Sarcoplasmic reticulum	?
Z-line	?
M-line	?

Source: orcusprep.in

NCERT INDEPTH

medium

SR stores calcium; Z-line attachment for thin filaments; M-line stabilizes thick filaments

SR stores ATP; Z-line elasticity; M-line stores calcium

SR coordinates contraction; Z-line stores myosin; M-line stores actin

SR stores calcium; Z-line stabilizes thick; M-line anchors thin

Q58. Assertion (A): Cardiac muscles are branched and striated.
Reason (R): Cardiac muscle contraction is voluntary.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

medium

A) Both correct, R explains A

B) Both correct, R does not explain A

C) A correct, R incorrect

D) Both incorrect

Q59. Match-the-following: Muscle property with description:

Property	Description
Excitability	?
Contractility	?
Extensibility	?
Elasticity	?

Source: orcusprep.in

NCERT INDEPTH

medium

Excitability-respond to stimulus; Contractility-generate force; Extensibility-stretch; Elasticity-return to original length

Excitability-generate force; Contractility-stretch; Extensibility-return; Elasticity-respond to stimulus

Excitability-stretch; Contractility-return; Extensibility-respond; Elasticity-force

All incorrect

Q60. Statement-based: Identify TRUE statements:
1. Thick filaments composed of myosin.
2. Thin filaments attached to M-line.
3. Sarcomere spans Z-line to Z-line.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

medium

1 and 2

1 and 3

2 and 3

All 1,2,3

Q61. Assertion (A): Visceral muscles are involuntary.
Reason (R): They are non-striated.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

medium

A) Both A and R correct and R explains A

B) Both correct but R does not explain A

C) A correct, R incorrect

D) Both incorrect

Q62. High-order: Why is skeletal muscle called voluntary despite being striated?
Options relate structure to function. Source: orcusprep.in

NCERT INDEPTH

medium

Because striations allow conscious control

Because contraction is regulated by somatic nervous system

Because it contains myofibrils

Because it has sarcomeres

Q63. Diagram reasoning: Identify structures in sarcomere responsible for contraction:

Structure	Role
Actin filament	?
Myosin filament	?

Source: orcusprep.in

NCERT INDEPTH

medium

Actin-sliding; Myosin-power stroke

Actin-anchor; Myosin-sliding

Actin-power stroke; Myosin-anchor

Both provide elasticity

Q64. Statement-based: Identify correct statements:
1. Cardiac muscle fibers are multinucleated.
2. Sarcomere is functional unit of skeletal muscle.
3. Smooth muscles lack myofibrils.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

hard

1 and 2

2 and 3

1 and 3

All 1,2,3

Q65. Assertion (A): Mitochondria are abundant in skeletal muscle.
Reason (R): Muscles require high energy for contraction.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

hard

A) Both correct and R explains A

B) Both correct but R does not explain A

C) A correct, R incorrect

D) Both incorrect

Q66. High-order: Identify which band shortens during contraction: Source: orcusprep.in

NCERT INDEPTH

hard

I-band

A-band

M-line

Z-line

Q67. Assertion (A): Thick filaments are myosin.
Reason (R): They are thinner than actin filaments.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

hard

A) A correct, R incorrect

B) Both correct and R explains A

C) Both incorrect

D) A incorrect, R correct

Q68. Match-the-following: Muscle type with function:

Muscle	Function
Skeletal	?
Visceral	?
Cardiac	?

Source: orcusprep.in

NCERT INDEPTH

hard

Skeletal-locomotion/posture; Visceral-transport in organs; Cardiac-pump blood

Skeletal-pump blood; Visceral-locomotion; Cardiac-transport food

Skeletal-locomotion; Visceral-pump blood; Cardiac-transport food

All incorrect

Q69. Assertion (A): Sarcomere is functional unit of contraction.
Reason (R): Actin and myosin overlap.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

hard

A) Both correct and R explains A

B) Both correct but R does not explain A

C) A correct, R incorrect

D) Both incorrect

Q70. Statement-based: Identify correct statements:
1. H-zone disappears on maximal contraction.
2. A-band shortens during contraction.
3. I-band shortens.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

hard

1 and 3 only

2 and 3 only

1 and 2 only

All 1,2,3

Q71. High-order: Why are cardiac muscles involuntary despite being striated? Source: orcusprep.in

NCERT INDEPTH

hard

Due to autonomic nervous system control

Due to somatic nervous system control

Due to lack of myofibrils

Due to syncytial nature

Q72. Diagram reasoning: Identify the relationship between Z-line, I-band, and sarcomere length:

Structure	Relation
Z-line	?
I-band	?
Sarcomere	?

Source: orcusprep.in

NCERT INDEPTH

hard

Z-line: bisects I-band; I-band: shortens on contraction; Sarcomere: Z-line to Z-line

Z-line anchors thick filaments; I-band constant; Sarcomere M-line to M-line

Z-line: middle of A-band; I-band lengthens; Sarcomere: H-zone to H-zone

None of the above

Q73. Statement-based: Identify TRUE statements:
1. Thick filaments are anchored by M-line.
2. Sarcoplasm contains many nuclei.
3. Skeletal muscle is involuntary.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

hard

1 and 2

2 and 3

1 and 3

All 1,2,3

Q74. Each actin filament is composed of which type of actin? Source: orcusprep.in

NCERT INDEPTH

easy

F-actin

G-actin

H-actin

M-actin

Q75. Tropomyosin in actin filaments is associated with which protein complex? Source: orcusprep.in

NCERT INDEPTH

easy

Myosin

Troponin

Titin

Nebulin

Q76. Which subunit masks myosin-binding sites on actin in resting state? Source: orcusprep.in

NCERT INDEPTH

medium

Tropomyosin

Troponin

G-actin

F-actin

Q77. Meromyosins are monomeric proteins constituting which filament? Source: orcusprep.in

NCERT INDEPTH

easy

Actin filament

Myosin filament

Tropomyosin filament

Troponin filament

Q78. Heavy meromyosin (HMM) includes which parts of myosin? Source: orcusprep.in

NCERT INDEPTH

medium

Tail only

Head and short arm

Tail and globular head

Short arm only

Q79. Globular head of myosin acts as: Source: orcusprep.in

NCERT INDEPTH

easy

ATPase enzyme

Structural support only

Calcium store

Elastic fiber

Q80. F-actin is polymer of which monomer? Source: orcusprep.in

NCERT INDEPTH

easy

G-actin

H-actin

M-actin

Tropomyosin

Q81. Cross arms of myosin are projections from: Source: orcusprep.in

NCERT INDEPTH

medium

F-actin

LMM

HMM

Troponin

Q82. Which filament has tropomyosin running along its length? Source: orcusprep.in

NCERT INDEPTH

easy

Actin filament

Myosin filament

Titin filament

Nebulin filament

Q83. Binding sites for actin are present on: Source: orcusprep.in

NCERT INDEPTH

medium

F-actin

LMM

HMM

Troponin

Q84. Assertion (A): Troponin masks myosin-binding sites on actin at rest.
Reason (R): Tropomyosin alone is sufficient to block myosin interaction.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q85. Match the following:

Myosin Part	Function
HMM	?
LMM	?

Source: orcusprep.in

NCERT INDEPTH

hard

HMM-head & short arm/ATPase; LMM-tail

HMM-tail; LMM-head & short arm

HMM-entire filament; LMM-cross-arms

HMM-anchors; LMM-slides

Q86. High-order: Why is F-actin helical in structure? Options relate function: Source: orcusprep.in

NCERT INDEPTH

hard

Stability and flexibility

ATP binding

Calcium storage

Cross-bridge formation only

Q87. Statement-based: Identify correct statements:
1. Myosin heads have ATPase activity.
2. Troponin regulates actin-myosin interaction.
3. LMM forms cross-arms.
Select correct option: Source: orcusprep.in

NCERT INDEPTH

hard

1 and 2 only

2 and 3 only

1 and 3 only

All 1,2,3

Q88. Diagram reasoning: Which protein covers active sites on actin filaments? Source: orcusprep.in

NCERT INDEPTH

hard

Troponin

Tropomyosin

HMM

LMM

Q89. Assertion (A): Myosin HMM forms cross-arms.
Reason (R): HMM projects outwards at regular distances.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q90. Match-the-following:

Protein	Role
F-actin	?
Troponin	?
Tropomyosin	?

Source: orcusprep.in

NCERT INDEPTH

hard

F-actin: thin filament; Troponin: masks binding sites; Tropomyosin: stabilises filament

F-actin: ATPase; Troponin: tail; Tropomyosin: cross-arms

F-actin: thick filament; Troponin: binds ATP; Tropomyosin: stores calcium

All incorrect

Q91. High-order: Which protein directly binds ATP in muscle contraction? Source: orcusprep.in

NCERT INDEPTH

hard

F-actin

HMM

Tropomyosin

Troponin

Q92. Assertion (A): Meromyosin is monomeric.
Reason (R): It assembles to form thick filaments.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q93. Statement-based: Identify TRUE statements:
1. HMM forms cross-arms; 2. Tropomyosin runs alongside F-actin; 3. Troponin subunit masks binding sites at rest. Source: orcusprep.in

NCERT INDEPTH

hard

1 and 2 only

2 and 3 only

1 and 3 only

All 1,2,3

Q94. Which theory explains muscle contraction by the sliding of thin filaments over thick filaments? Source: orcusprep.in

NCERT INDEPTH

medium

Cross-bridge theory

Sliding filament theory

Huxley theory

Actin-myosin rotation theory

Q95. The functional unit of a muscle fibre that shortens during contraction is: Source: orcusprep.in

NCERT INDEPTH

medium

Sarcomere

Myofibril

Motor unit

Myosin filament

Q96. What is the junction between a motor neuron and muscle fibre called? Source: orcusprep.in

NCERT INDEPTH

medium

Synapse

Neuromuscular junction

Sarcoplasmic reticulum

Motor-end fibre

Q97. Neurotransmitter released at the neuromuscular junction is: Source: orcusprep.in

NCERT INDEPTH

medium

Dopamine

Serotonin

Acetylcholine

GABA

Q98. Increase in which ion concentration triggers muscle contraction? Source: orcusprep.in

NCERT INDEPTH

medium

Na+

K+

Ca++

Mg++

Q99. Binding of myosin head to actin is powered by: Source: orcusprep.in

NCERT INDEPTH

medium

GTP

ATP hydrolysis

ADP only

Phosphocreatine

Q100. During contraction, which band gets shortened? Source: orcusprep.in

NCERT INDEPTH

medium

A-band

I-band

M-line

H-zone

Q101. Which structure stores Ca++ in muscle fibres? Source: orcusprep.in

NCERT INDEPTH

medium

Sarcoplasmic reticulum

M-line

Z-line

Myofibril

Q102. What is the term for a motor neuron plus all muscle fibres it innervates? Source: orcusprep.in

NCERT INDEPTH

medium

Motor unit

Synapse

Sarcomere

Myofibril

Q103. What happens to Z-lines during contraction? Source: orcusprep.in

NCERT INDEPTH

medium

Remain constant

Move apart

Pulled inward

Disintegrate

Q104. Which muscle fibre type has high myoglobin and abundant mitochondria? Source: orcusprep.in

NCERT INDEPTH

medium

Red fibres

White fibres

Intermediate fibres

Smooth fibres

Q105. White muscle fibres are adapted for: Source: orcusprep.in

NCERT INDEPTH

medium

Aerobic respiration

Anaerobic respiration

Oxygen storage

High mitochondria content

Q106. Accumulation of lactic acid in muscles is due to: Source: orcusprep.in

NCERT INDEPTH

medium

Aerobic breakdown

Anaerobic breakdown

ATP hydrolysis

Glycolysis in mitochondria

Q107. During relaxation, calcium ions are: Source: orcusprep.in

NCERT INDEPTH

medium

Released into sarcoplasm

Pumped back into sarcoplasmic cisternae

Bind more troponin

Remain in cytosol

Q108. Which process breaks the cross-bridge between myosin and actin? Source: orcusprep.in

NCERT INDEPTH

medium

ADP release

ATP binding

Ca++ binding

Na+ influx

Q109. Repeated activation of muscles leading to fatigue is due to accumulation of: Source: orcusprep.in

NCERT INDEPTH

medium

Oxygen

Myoglobin

Lactic acid

ATP

Q110. During contraction, which filament remains constant in length? Source: orcusprep.in

NCERT INDEPTH

medium

Thin filament

I-band

A-band

Sarcomere

Q111. Energy for myosin head movement is primarily derived from: Source: orcusprep.in

NCERT INDEPTH

medium

ATP hydrolysis

Glucose

Phosphocreatine

Fatty acids

Q112. Which of the following describes the correct sequence during contraction initiation? Source: orcusprep.in

NCERT INDEPTH

medium

CNS → Ca++ release → ATP hydrolysis → cross-bridge formation

CNS → ATP → Ca++ release → cross-bridge

ATP → CNS → Ca++ release → cross-bridge

Ca++ → CNS → ATP → cross-bridge

Q113. Motor-end plate is another name for: Source: orcusprep.in

NCERT INDEPTH

medium

Motor neuron terminal

Neuromuscular junction

Sarcomere end

Myofibril tip

Q114. Match the components with their roles in contraction:

Component	Role
Ca++	?
ATP	?
Myosin head	?

Source: orcusprep.in

NCERT INDEPTH

hard

Ca++: binds troponin; ATP: energy for cross-bridge; Myosin head: binds actin

Ca++: energy; ATP: binds actin; Myosin head: blocks active sites

Ca++: blocks myosin; ATP: binds troponin; Myosin head: hydrolyses Ca++

All incorrect

Q115. Assertion (A): I-band shortens during contraction.
Reason (R): Thin filaments slide over thick filaments.
Choose correct option: Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q116. Table reasoning: Identify sarcomere changes during contraction:

Structure	Change
I-band	?
A-band	?
H-zone	?

Source: orcusprep.in

NCERT INDEPTH

hard

I-band shortens; A-band constant; H-zone shortens

I-band constant; A-band shortens; H-zone constant

All shorten

All constant

Q117. High-order: Which step occurs immediately after Ca++ release in sarcoplasm? Source: orcusprep.in

NCERT INDEPTH

hard

ATP hydrolysis by myosin

Binding of Ca++ to troponin

Cross-bridge formation

Sliding of filaments

Q118. Assertion (A): Cross-bridge cycling requires ATP.
Reason (R): ATP breaks the actin-myosin bond and repositions myosin head. Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q119. Match the fibre type with its characteristic:

Fiber	Feature
Red	?
White	?

Source: orcusprep.in

NCERT INDEPTH

hard

Red: High myoglobin, aerobic, fatigue-resistant; White: Low myoglobin, anaerobic, fast fatigue

Red: Anaerobic; White: Aerobic

Red: Low mitochondria; White: High mitochondria

All incorrect

Q120. Cross-bridge formation sequence:
1. ATP binds myosin
2. ATP hydrolysed
3. Myosin binds actin
4. Power stroke
5. ADP released
Choose correct order: Source: orcusprep.in

NCERT INDEPTH

hard

1→2→3→4→5

2→1→3→4→5

3→2→1→5→4

1→3→2→5→4

Q121. High-order: Fatigue in muscles is caused mainly due to: Source: orcusprep.in

NCERT INDEPTH

hard

ATP shortage

Ca++ overload

Lactic acid accumulation

Loss of acetylcholine

Q122. Assertion (A): Motor unit size affects contraction strength.
Reason (R): More fibres per neuron increase force generated. Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q123. Table-based: ATP role in contraction:

Step	ATP Function
Break cross-bridge	?
Reposition myosin head	?

Source: orcusprep.in

NCERT INDEPTH

hard

Break cross-bridge: ATP binding; Reposition myosin: ATP hydrolysis

Break cross-bridge: ADP release; Reposition myosin: ATP binding

All incorrect

None

Q124. High-order reasoning: Why does A-band length remain constant during contraction? Source: orcusprep.in

NCERT INDEPTH

hard

Thick filament does not shorten

Thin filament elongates

Sarcomere lengthens

H-zone disappears completely

Q125. Assertion (A): Red fibres are fatigue-resistant.
Reason (R): They contain abundant mitochondria and myoglobin. Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q126. High-order table: Ca++ function during contraction:

Ca++ Action	Outcome
Bind troponin	?
Sequestered by SR	?

Source: orcusprep.in

NCERT INDEPTH

hard

Bind troponin: exposes actin; Sequestered by SR: relaxation

Bind troponin: relaxation; Sequestered by SR: contraction

Both: contraction

Both: relaxation

Q127. High-order: Which event immediately follows ATP hydrolysis in myosin during contraction? Source: orcusprep.in

NCERT INDEPTH

hard

Myosin head binds actin

ADP released

Ca++ binds troponin

ATP binds myosin

Q128. Table-based: Compare Red vs White fibres:

Feature	Red	White
Myoglobin	?	?
Mitochondria	?	?
Energy pathway	?	?

Source: orcusprep.in

NCERT INDEPTH

hard

Myoglobin: high/low; Mitochondria: abundant/few; Energy: aerobic/anaerobic

Myoglobin: low/high; Mitochondria: few/abundant; Energy: anaerobic/aerobic

All reversed

All same

Q129. Cross-bridge detachment requires which molecule to bind myosin head? Source: orcusprep.in

NCERT INDEPTH

hard

ATP

ADP

Ca++

Troponin

Q130. Cross-bridge cycle sequence with energy utilization:

Step	Energy Source
Myosin head detachment	?
Myosin head cocking	?
Power stroke	?

Source: orcusprep.in

NCERT INDEPTH

hard

ATP binding; ATP hydrolysis; Stored energy in myosin

ATP hydrolysis; Stored energy; ADP release

ADP release; ATP binding; Ca++ energy

All incorrect

Q131. Assertion (A): Continuous cross-bridge cycling occurs until Ca++ is removed.
Reason (R): Ca++ binding to troponin exposes actin active sites. Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q132. High-order: During fatigue, which metabolic limitation primarily causes reduced contraction force? Source: orcusprep.in

NCERT INDEPTH

hard

ATP depletion

Excess Ca++

Accumulation of lactic acid

Glycogen depletion

Q133. Table reasoning: Role of Ca++ during contraction and relaxation:

Event	Ca++ Role
Contraction initiation	?
Relaxation	?

Source: orcusprep.in

NCERT INDEPTH

hard

Contraction: binds troponin; Relaxation: pumped back to SR

Contraction: pumps SR; Relaxation: binds troponin

All reversed

Both none

Q134. High-order reasoning: Why do white fibres fatigue faster than red fibres? Source: orcusprep.in

NCERT INDEPTH

hard

Low myoglobin & mitochondria, anaerobic metabolism

Excess Ca++

Fewer sarcomeres

Larger sarcoplasmic reticulum

Q135. Sequence reasoning: Arrange the steps of excitation-contraction coupling:
1. Action potential in sarcolemma
2. Ca++ release from SR
3. Troponin binding
4. Cross-bridge formation
5. Filament sliding Source: orcusprep.in

NCERT INDEPTH

hard

1→2→3→4→5

2→1→3→4→5

1→3→2→5→4

3→1→2→4→5

Q136. Table reasoning: Fiber type comparison for NEET exam:

Feature	Red fibre	White fibre
Myoglobin	?	?
ATP supply	?	?
Contraction speed	?	?

Source: orcusprep.in

NCERT INDEPTH

hard

High; Low; Oxidative, slow; Glycolytic, fast

Low; High; Slow; Fast

All reversed

All same

Q137. Assertion (A): ATP hydrolysis by myosin head is essential before power stroke.
Reason (R): It energizes myosin for actin binding. Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q138. Cross-bridge detachment is dependent on: Source: orcusprep.in

NCERT INDEPTH

hard

ATP binding to myosin head

ADP release

Ca++ binding to troponin

Phosphate release

Q139. High-order: Which step immediately precedes sarcomere shortening? Source: orcusprep.in

NCERT INDEPTH

hard

Cross-bridge formation

ATP hydrolysis

Ca++ release

ADP release

Q140. Assertion (A): Myosin heads attach to actin at regular angles.
Reason (R): Uniform orientation allows coordinated filament sliding. Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q141. Table reasoning: Energy sources in red vs white fibres:

Feature	Red	White
Primary ATP source	?	?
Fatigue resistance	?	?

Source: orcusprep.in

NCERT INDEPTH

hard

Oxidative phosphorylation; Glycolysis; High; Low

Glycolysis; Oxidative; Low; High

All reversed

All none

Q142. High-order reasoning: Why does Z-line return to original position during relaxation? Source: orcusprep.in

NCERT INDEPTH

hard

Ca++ pumped back to SR masks actin binding sites

ATP hydrolysis

ADP release

Myosin detachment

Q143. Assertion (A): Accumulation of lactic acid lowers muscle pH.
Reason (R): Anaerobic glycolysis produces lactate. Source: orcusprep.in

NCERT INDEPTH

hard

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q144. Sequence reasoning: Identify correct ATP cycle in myosin during repeated contraction:
1. ATP binds, 2. Detachment, 3. Hydrolysis, 4. Head cocking, 5. Cross-bridge formation Source: orcusprep.in

NCERT INDEPTH

hard

1→2→3→4→5

1→3→2→5→4

2→1→3→5→4

All incorrect

Q145. Match the bones with their counts:

Bone	Count
Skull	?
Ribs	?
Vertebrae	?

Source: orcusprep.in

NCERT INDEPTH

medium

Skull: 22; Ribs: 24; Vertebrae: 26

Skull: 24; Ribs: 22; Vertebrae: 25

Skull: 22; Ribs: 24; Vertebrae: 25

Skull: 23; Ribs: 24; Vertebrae: 26

Q146. Assertion (A): Hyoid bone does not articulate with any other bone.
Reason (R): It is suspended in buccal cavity by ligaments and muscles. Source: orcusprep.in

NCERT INDEPTH

medium

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q147. Which bones form the axial skeleton? Source: orcusprep.in

NCERT INDEPTH

medium

Skull, vertebral column, ribs, sternum

Skull, limb bones, scapula, ribs

Vertebrae, pelvic girdle, femur, skull

All bones of body

Q148. Table-based: Classify ribs:

Rib Type	Pairs	Ventral Attachment
True ribs	?	?
False ribs	?	?
Floating ribs	?	?

Source: orcusprep.in

NCERT INDEPTH

medium

True: 7; direct sternum; False: 3; indirect; Floating: 2; none

True: 7; indirect; False: 3; direct; Floating: 2; none

True: 6; direct; False: 4; indirect; Floating: 2; direct

All incorrect

Q149. How many bones are there in the appendicular skeleton? Source: orcusprep.in

NCERT INDEPTH

medium

126

80

206

30

Q150. Identify the bone: "Flat, triangular, dorsal thorax, has spine and acromion." Source: orcusprep.in

NCERT INDEPTH

medium

Scapula

Clavicle

Sternum

Humerus

Q151. Assertion (A): Patella protects the knee joint.
Reason (R): It is a sesamoid bone embedded in quadriceps tendon. Source: orcusprep.in

NCERT INDEPTH

medium

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q152. Table reasoning: Vertebral regions:

Region	Number
Cervical	?
Thoracic	?
Lumbar	?
Sacral	?
Coccygeal	?

Source: orcusprep.in

NCERT INDEPTH

medium

Cervical:7; Thoracic:12; Lumbar:5; Sacral:1; Coccygeal:1

Cervical:7; Thoracic:12; Lumbar:6; Sacral:1; Coccygeal:1

Cervical:6; Thoracic:12; Lumbar:5; Sacral:1; Coccygeal:1

All incorrect

Q153. Which bone articulates with the acetabulum? Source: orcusprep.in

NCERT INDEPTH

medium

Femur

Tibia

Pelvis

Patella

Q154. Statement: Clavicle is commonly called? Source: orcusprep.in

NCERT INDEPTH

medium

Collar bone

Shoulder blade

Breast bone

Jaw bone

Q155. Assertion (A): Atlas articulates with occipital condyles.
Reason (R): First cervical vertebra supports the skull. Source: orcusprep.in

NCERT INDEPTH

medium

A correct, R correct and R explains A

A correct, R correct but R does not explain A

A correct, R incorrect

Both incorrect

Q156. Table reasoning: Hand bones:

Bone	Count
Carpals	?
Metacarpals	?
Phalanges	?

Source: orcusprep.in

NCERT INDEPTH

medium

Carpals:8; Metacarpals:5; Phalanges:14

Carpals:7; Metacarpals:5; Phalanges:15

Carpals:8; Metacarpals:6; Phalanges:14

All incorrect

Q157. Table reasoning: Leg bones:

Bone	Count
Tarsals	?
Metatarsals	?
Phalanges	?

Source: orcusprep.in

NCERT INDEPTH

medium

Tarsals:7; Metatarsals:5; Phalanges:14

Tarsals:6; Metatarsals:5; Phalanges:15

All incorrect

Tarsals:7; Metatarsals:6; Phalanges:14

Q158. Which bones form the pectoral girdle? Source: orcusprep.in

NCERT INDEPTH

medium

Clavicle and Scapula

Scapula and Humerus

Clavicle and Humerus

Sternum and Clavicle

Q159. Pelvic girdle is formed by fusion of? Source: orcusprep.in

NCERT INDEPTH

medium

Ilium, Ischium, Pubis

Ilium, Ischium, Sacrum

Pubis, Femur, Ischium

Ilium, Coccyx, Pubis

Q160. Which bone protects the thoracic organs? Source: orcusprep.in

NCERT INDEPTH

medium

Ribs and Sternum

Vertebrae

Clavicle

Pelvic girdle

Q161. Statement: Dicondylic skull means? Source: orcusprep.in

NCERT INDEPTH

medium

Skull articulates with vertebral column through two occipital condyles

Skull has two halves

Skull has two sutures

Skull has two layers of bone

Q162. Which ossicles are present in middle ear? Source: orcusprep.in

NCERT INDEPTH

medium

Malleus, Incus, Stapes

Hammer, Anvil, Stirrup

Both 1 & 2

None

Q163. Which part of scapula articulates with humerus? Source: orcusprep.in

NCERT INDEPTH

medium

Glenoid cavity

Acromion

Spine

Coracoid process

Q164. How many curvatures are present in the clavicle? Source: orcusprep.in

NCERT INDEPTH

medium

Two

One

Three

None

Q165. Which bone articulates with acetabulum? Source: orcusprep.in

NCERT INDEPTH

medium

Femur

Patella

Tibia

Fibula

Q166. Which is the longest bone of the human body? Source: orcusprep.in

NCERT INDEPTH

medium

Femur

Tibia

Humerus

Fibula

Q167. Statement: Sternum is a ______ bone. Source: orcusprep.in

NCERT INDEPTH

medium

Flat

Long

Short

Irregular

Q168. Which ribs are called vertebrochondral? Source: orcusprep.in

NCERT INDEPTH

medium

8th, 9th, 10th pairs

1st to 7th

11th,12th

None

Q169. Which ribs are floating ribs? Source: orcusprep.in

NCERT INDEPTH

medium

11th and 12th

8th and 9th

1st and 2nd

None

Q170. Which vertebra is first in vertebral column? Source: orcusprep.in

NCERT INDEPTH

medium

Atlas

Axis

C1

C2

Q171. Statement: Spine of scapula projects as? Source: orcusprep.in

NCERT INDEPTH

medium

Acromion

Coracoid process

Glenoid cavity

Clavicle

Q172. How many of the following statements are correct?
1. Atlas is C1 vertebra.
2. Axis is C2 vertebra.
3. Atlas articulates with coccyx.
4. Axis allows rotation of skull. Source: orcusprep.in

NCERT INDEPTH

hard

1

2

3

All 4

Q173. Match the bones with their categories:

Bone	Type
Sternum	?
Femur	?
Vertebra	?
Patella	?

Source: orcusprep.in

NCERT INDEPTH

hard

Sternum: flat; Femur: long; Vertebra: irregular; Patella: sesamoid

Sternum: long; Femur: short; Vertebra: flat; Patella: sesamoid

All reversed

Sternum: flat; Femur: sesamoid; Vertebra: long; Patella: irregular

Q174. How many of the following statements are correct?
1. Hyoid articulates with skull.
2. Floating ribs do not connect to sternum.
3. True ribs connect directly to sternum.
4. False ribs connect indirectly to sternum. Source: orcusprep.in

NCERT INDEPTH

hard

1

2

3

All 4

Q175. Match the bones with articulations:

Bone	Articulates with
Clavicle	?
Scapula	?
Pelvis	?
Humerus	?

Source: orcusprep.in

NCERT INDEPTH

hard

Clavicle: sternum; Scapula: humerus; Pelvis: femur; Humerus: scapula

Clavicle: scapula; Scapula: sternum; Pelvis: tibia; Humerus: clavicle

All reversed

None

Q176. How many of the following are true about vertebral column?
1. 7 cervical vertebrae.
2. 12 thoracic vertebrae.
3. 5 lumbar vertebrae.
4. Coccyx is 3-5 fused vertebrae. Source: orcusprep.in

NCERT INDEPTH

hard

All 4

3

2

1

Q177. Table reasoning: Rib types

Rib Type	Attachment
True	?
False	?
Floating	?

Source: orcusprep.in

NCERT INDEPTH

hard

True: sternum direct; False: sternum indirect; Floating: none

True: sternum indirect; False: sternum direct; Floating: none

All reversed

None

Q178. How many of the following bones are in upper limb?
1. Humerus
2. Radius
3. Ulna
4. Femur
5. Carpals
6. Metacarpals
7. Phalanges Source: orcusprep.in

NCERT INDEPTH

hard

5

6

7

4

Q179. Match column: Bone – Feature

Bone	Feature
Patella	?
Clavicle	?
Sternum	?
Femur	?

Source: orcusprep.in

NCERT INDEPTH

hard

Patella: sesamoid; Clavicle: curved long; Sternum: flat; Femur: long

Patella: long; Clavicle: flat; Sternum: sesamoid; Femur: curved

All reversed

None

Q180. How many of the following statements are correct?
1. Acromion is part of scapula.
2. Glenoid cavity articulates with humerus.
3. Spine of scapula is dorsal ridge.
4. Clavicle articulates with femur Source: orcusprep.in

NCERT INDEPTH

hard

2

3

4

All 4

Q181. Table: Pelvic girdle bones and features

Bone	Feature
Ilium	?
Ischium	?
Pubis	?

Source: orcusprep.in

NCERT INDEPTH

hard

Ilium: largest; Ischium: posterior; Pubis: anterior

Ilium: anterior; Ischium: posterior; Pubis: lateral

All reversed

None

Q182. How many of the following features belong to scapula?
1. Spine
2. Acromion
3. Glenoid cavity
4. Coracoid process
5. Patella Source: orcusprep.in

NCERT INDEPTH

hard

3

4

5

All 5

Q183. Match bones with number of each:

Bone	Count
Cervical vertebrae	?
Thoracic vertebrae	?
Lumbar vertebrae	?
Sacral vertebrae	?

Source: orcusprep.in

NCERT INDEPTH

hard

Cervical:7; Thoracic:12; Lumbar:5; Sacral:1-fused

All reversed

Cervical:6; Thoracic:12; Lumbar:5; Sacral:1-fused

None

Q184. Which of the following statements about ribs is correct?
1. Bicephalic ribs have 2 dorsal articulation surfaces.
2. Floating ribs are 11th and 12th pairs
3. False ribs are vertebrochondral
4. True ribs are 8-10 pairs Source: orcusprep.in

NCERT INDEPTH

hard

1,2,3

All 4

1,3,4

2,3,4

Q185. How many of the following are components of hand bones?
1. Carpals
2. Metacarpals
3. Phalanges
4. Tarsals Source: orcusprep.in

NCERT INDEPTH

hard

2

3

1

All 4

Q186. Table reasoning: Appendicular skeleton

Region	Bones
Upper limb	?
Lower limb	?

Source: orcusprep.in

NCERT INDEPTH

hard

Upper:30; Lower:30

Upper:32; Lower:28

All reversed

None

Q187. Which statement is true about dicondylic skull? Source: orcusprep.in

NCERT INDEPTH

hard

Articulates with vertebral column using 2 occipital condyles

Has 2 temporal bones

Has 2 maxillae

None

Q188. How many of the following statements are correct about pelvic girdle?
1. Formed by 2 coxal bones
2. Coxal bones formed by ilium, ischium, pubis
3. Acetabulum articulates with femur
4. Ventral fusion forms pubic symphysis Source: orcusprep.in

NCERT INDEPTH

hard

4

3

2

1

Q189. Match the following:

Bone	Feature/Articulation
Hyoid	?
Malleus	?
Incus	?
Stapes	?

Source: orcusprep.in

NCERT INDEPTH

hard

Hyoid: no articulation; Malleus: middle ear; Incus: middle ear; Stapes: middle ear

All reversed

Hyoid: skull; Ossicles: jaw

None

Q190. Which bones contribute to rib cage? Source: orcusprep.in

NCERT INDEPTH

hard

Ribs, Thoracic vertebrae, Sternum

Ribs, Sternum, Femur

Vertebrae, Sternum, Humerus

Ribs, Sternum, Clavicle

Q191. How many of the following statements about scapula are correct?
1. Has spine
2. Spine projects as acromion
3. Glenoid cavity articulates with femur
4. Coracoid process is present Source: orcusprep.in

NCERT INDEPTH

hard

2

3

All 4

1

Q192. Table: Bones and number in hand/foot

Region	Bone Count
Hand	?
Foot	?

Source: orcusprep.in

NCERT INDEPTH

hard

Hand:27; Foot:26

Hand:30; Foot:30

All reversed

None

Q193. How many bones are in pectoral girdle? Source: orcusprep.in

NCERT INDEPTH

hard

2

1

3

4

Q194. Which of the following statements are true about sternum?
1. Flat bone
2. Ventral midline of thorax
3. Connects with ribs
4. Forms acetabulum Source: orcusprep.in

NCERT INDEPTH

hard

1,2,3

All 4

2,3,4

1,4

Q195. Which vertebra articulates with skull? Source: orcusprep.in

NCERT INDEPTH

hard

Atlas

Axis

C2

C3

Q196. Which of the following statements about joints is correct?
1. Fibrous joints allow no movement
2. Cartilaginous joints allow limited movement
3. Synovial joints are freely movable
4. Hinge joint is found in shoulder Source: orcusprep.in

NCERT INDEPTH

medium

1,2,3

All 4

2,3,4

1,4

Q197. Identify the correct match:

Joint Type	Example
Ball & Socket	?
Hinge	?
Pivot	?
Saddle	?

Source: orcusprep.in

NCERT INDEPTH

medium

Ball & Socket: Shoulder; Hinge: Knee; Pivot: Atlas-Axis; Saddle: Thumb

Ball & Socket: Hip; Hinge: Elbow; Pivot: Wrist; Saddle: Ankle

All reversed

None

Q198. Which statement is correct regarding synovial joints?
1. Presence of synovial cavity
2. Surfaces covered by hyaline cartilage
3. Contains synovial fluid
4. Present only in limbs Source: orcusprep.in

NCERT INDEPTH

hard

1,2,3

All 4

1,3,4

2,3

Q199. Force generated by muscles acts on:
1. Joints
2. Fulcrum
3. Bones
4. Tendons
Which combination is correct for movement execution? Source: orcusprep.in

NCERT INDEPTH

medium

1,2,3

1,3,4

All 4

2,3

Q200. Which of the following is NOT a fibrous joint? Source: orcusprep.in

NCERT INDEPTH

medium

Suture between skull bones

Syndesmosis between radius & ulna

Synchondrosis between vertebrae

All allow no movement

Q201. Match the joint type with its mobility:

Joint	Mobility
Fibrous	?
Cartilaginous	?
Synovial	?

Source: orcusprep.in

NCERT INDEPTH

medium

Fibrous: immovable; Cartilaginous: limited; Synovial: free

Fibrous: limited; Cartilaginous: immovable; Synovial: free

All reversed

None

Q202. Identify the type of joint for the following:
1. Skull sutures
2. Intervertebral discs
3. Elbow
4. Carpometacarpal of thumb Source: orcusprep.in

NCERT INDEPTH

medium

1-Fibrous, 2-Cartilaginous, 3-Hinge, 4-Saddle

1-Cartilaginous, 2-Fibrous, 3-Hinge, 4-Saddle

All reversed

1-Synovial, 2-Cartilaginous, 3-Pivot, 4-Ball & Socket

Q203. Which of the following joints allow rotation? Source: orcusprep.in

NCERT INDEPTH

hard

Pivot

Hinge

Ball & Socket

Saddle

Q204. Which statement is correct about ball & socket joints? Source: orcusprep.in

NCERT INDEPTH

medium

Allow movement in multiple planes and rotation

Allow only flexion and extension

No movement, just stability

Allow gliding only

Q205. Which of the following is a gliding joint? Source: orcusprep.in

NCERT INDEPTH

hard

Between carpals

Hip joint

Knee joint

Thumb CMC joint

Q206. How many of the following statements about joints are correct?
1. Sutures are fibrous joints
2. Intervertebral discs are synovial
3. Elbow is a hinge joint
4. Thumb CMC is saddle joint Source: orcusprep.in

NCERT INDEPTH

hard

1,3,4

All 4

2,3

1,2,3

Q207. Match the joint with type:

Joint	Type
Shoulder	?
Knee	?
Atlas-Axis	?
Thumb CMC	?

Source: orcusprep.in

NCERT INDEPTH

hard

Shoulder: Ball & Socket; Knee: Hinge; Atlas-Axis: Pivot; Thumb CMC: Saddle

All reversed

Shoulder: Hinge; Knee: Ball & Socket; Atlas-Axis: Saddle; Thumb: Pivot

None

Q208. How many of the following statements about mobility are true?
1. Synovial joints allow free movement
2. Cartilaginous joints are immovable
3. Fibrous joints are immovable
4. Pivot joint allows rotation Source: orcusprep.in

NCERT INDEPTH

hard

1,3,4

All 4

2,3

1,2

Q209. Table: Joint types and examples

Joint	Example
Fibrous	?
Cartilaginous	?
Synovial-Hinge	?
Synovial-Ball & Socket	?

Source: orcusprep.in

NCERT INDEPTH

hard

Sutures; Intervertebral; Elbow; Hip

All reversed

None

Sutures; Intervertebral; Shoulder; Thumb

Q210. How many of the following are examples of synovial joints?
1. Knee
2. Elbow
3. Thumb CMC
4. Skull suture
5. Atlas-Axis Source: orcusprep.in

NCERT INDEPTH

hard

1,2,3,5

All 5

1,2,3

2,4,5

Q211. Match joint type with mobility:

Joint	Mobility
Fibrous	?
Cartilaginous	?
Synovial	?

Source: orcusprep.in

NCERT INDEPTH

hard

Fibrous: immovable; Cartilaginous: limited; Synovial: free

All reversed

Fibrous: limited; Cartilaginous: free; Synovial: immovable

None

Q212. Which of the following joints permit multiaxial movement? Source: orcusprep.in

NCERT INDEPTH

hard

Ball & Socket

Hinge

Pivot

Gliding

Q213. How many of the following statements about synovial joints are correct?
1. Contains synovial fluid
2. Surfaces covered with hyaline cartilage
3. Permits limited movement
4. Present at limb articulations Source: orcusprep.in

NCERT INDEPTH

hard

1,2,4

All 4

2,3,4

1,3

Q214. Match the joint type with its example:

Type	Example
Pivot	?
Hinge	?
Saddle	?
Gliding	?

Source: orcusprep.in

NCERT INDEPTH

hard

Pivot: Atlas-Axis; Hinge: Elbow; Saddle: Thumb CMC; Gliding: Carpals

All reversed

Pivot: Elbow; Hinge: Atlas-Axis; Saddle: Carpals; Gliding: Thumb

None

Q215. How many of the following statements about hinge joint are true?
1. Only permits flexion & extension
2. Found in elbow & knee
3. Also called synovial joint
4. Allows rotation of bone around axis Source: orcusprep.in

NCERT INDEPTH

hard

1,2,3

All 4

2,3,4

1,4

Q216. Which of the following is true about cartilaginous joints? Source: orcusprep.in

NCERT INDEPTH

hard

Allow limited movement; vertebral discs

Immovable; skull sutures

Freely movable; knee

Pivot only; atlas-axis

Q217. Match the joint type to the skeletal region:

Joint	Region
Ball & Socket	?
Hinge	?
Pivot	?
Gliding	?

Source: orcusprep.in

NCERT INDEPTH

hard

Ball & Socket: Shoulder/Hip; Hinge: Elbow/Knee; Pivot: Atlas-Axis; Gliding: Carpals

All reversed

Ball & Socket: Knee; Hinge: Shoulder; Pivot: Thumb; Gliding: Hip

None

Q218. How many of the following statements about joints are correct?
1. Sutures are fibrous joints
2. Intervertebral discs are cartilaginous joints
3. Knee is a ball & socket joint
4. Atlas-axis is a pivot joint Source: orcusprep.in

NCERT INDEPTH

hard

1,2,4

All 4

2,3

1,3,4

Q219. Match the following joint type with its primary mobility:

Joint Type	Mobility
Fibrous	?
Cartilaginous	?
Synovial	?

Source: orcusprep.in

NCERT INDEPTH

hard

Fibrous: immovable; Cartilaginous: limited; Synovial: free

All reversed

Fibrous: limited; Cartilaginous: immovable; Synovial: free

None

Q220. Which of the following joints allows multiaxial movement? Source: orcusprep.in

NCERT INDEPTH

hard

Ball & Socket

Hinge

Pivot

Gliding

Q221. How many of the following statements about hinge joint are correct?
1. Permits flexion and extension only
2. Found in elbow and knee
3. Involuntary in function
4. Part of synovial joints Source: orcusprep.in

NCERT INDEPTH

hard

1,2,4

All 4

2,3

1,4

Q222. Table: Match joint type with example and characteristic

Joint	Example	Characteristic
Pivot	?	?
Saddle	?	?
Gliding	?	?

Source: orcusprep.in

NCERT INDEPTH

hard

Pivot: Atlas-Axis: Rotation; Saddle: Thumb CMC: Biaxial; Gliding: Carpals: Sliding

All reversed

Pivot: Elbow: Rotation; Saddle: Hip: Biaxial; Gliding: Thumb: Sliding

None

Q223. Which of the following statements about synovial joints are correct?
1. Have synovial cavity
2. Covered by hyaline cartilage
3. Found only in limbs
4. Allow free movement Source: orcusprep.in

NCERT INDEPTH

hard

1,2,4

All 4

2,3,4

1,3

Q224. How many of the following statements are true regarding cartilaginous joints?
1. Allow limited movement
2. Found between vertebrae
3. Contain synovial fluid
4. Immovable Source: orcusprep.in

NCERT INDEPTH

hard

1,2

All 4

2,3

1,3,4

Q225. Match the joint type with articulating bones:

Joint	Articulating Bones
Ball & Socket	?
Hinge	?
Pivot	?
Saddle	?

Source: orcusprep.in

NCERT INDEPTH

hard

Ball & Socket: Humerus-Scapula; Hinge: Humerus-Ulna; Pivot: Atlas-Axis; Saddle: Carpometacarpal of thumb

All reversed

Ball & Socket: Femur-Pelvis only; Hinge: Knee only; Pivot: Radius-Ulna; Saddle: Thumb-phalanges

None

Q226. How many of the following joints are synovial?
1. Knee
2. Elbow
3. Thumb CMC
4. Skull suture
5. Atlas-Axis Source: orcusprep.in

NCERT INDEPTH

hard

1,2,3,5

All 5

1,2,3

2,4,5

Q227. Which of the following are multiaxial synovial joints? Source: orcusprep.in

NCERT INDEPTH

hard

Ball & Socket

Hinge

Pivot

Saddle

Q228. How many of the following statements are correct?
1. Hinge joints allow rotation
2. Ball & Socket joints are multiaxial
3. Pivot joints allow rotation
4. Gliding joints permit sliding movement Source: orcusprep.in

NCERT INDEPTH

hard

2,3,4

All 4

1,2,3

1,4

Q229. Match the joint type with its mobility and example:

Joint	Mobility	Example
Fibrous	?	?
Cartilaginous	?	?
Synovial-Hinge	?	?

Source: orcusprep.in

NCERT INDEPTH

hard

Fibrous: Immovable; Sutures; Cartilaginous: Limited; Intervertebral discs; Synovial-Hinge: Flexion/Extension; Elbow

All reversed

Fibrous: Limited; Cartilaginous: Immovable; Synovial-Hinge: Rotation

None

Q230. How many of the following statements about gliding joint are correct?
1. Found between carpals
2. Allows sliding movement
3. Multiaxial
4. Synovial Source: orcusprep.in

NCERT INDEPTH

hard

1,2,4

All 4

2,3

1,3,4

Q231. Which of the following are biaxial synovial joints? Source: orcusprep.in

NCERT INDEPTH

hard

Saddle joint

Ball & Socket

Hinge

Pivot

Q232. Match the following:

Joint	Movement Allowed
Pivot	?
Hinge	?
Ball & Socket	?
Saddle	?

Source: orcusprep.in

NCERT INDEPTH

hard

Pivot: Rotation; Hinge: Flexion/Extension; Ball & Socket: Multiaxial; Saddle: Biaxial

All reversed

Pivot: Flexion; Hinge: Rotation; Ball & Socket: Biaxial; Saddle: Multiaxial

None

Q233. Which of the following statements about synovial joint is false? Source: orcusprep.in

NCERT INDEPTH

hard

Found only in limbs

Contains synovial fluid

Covered with hyaline cartilage

Allow free movement

Q234. How many of the following statements about ball & socket joints are correct?
1. Shoulder joint
2. Hip joint
3. Permit rotation
4. Found only in upper limb Source: orcusprep.in

NCERT INDEPTH

hard

1,2,3

All 4

2,3,4

1,4

Q235. Table: Joint type vs location

Joint Type	Location
Hinge	?
Pivot	?
Saddle	?
Gliding	?

Source: orcusprep.in

NCERT INDEPTH

hard

Hinge: Elbow/Knee; Pivot: Atlas-Axis; Saddle: Thumb CMC; Gliding: Carpals

All reversed

Hinge: Shoulder; Pivot: Hip; Saddle: Elbow; Gliding: Ankle

None

Q236. Which of the following statements about Myasthenia gravis are correct?
1. Autoimmune disorder
2. Affects neuromuscular junction
3. Leads to skeletal muscle fatigue and paralysis
4. Primarily affects smooth muscles Source: orcusprep.in

NCERT INDEPTH

medium

1,2,3

All 4

2,3,4

1,3

Q237. Which type of muscular dystrophy is most common in males and linked to X-chromosome? Source: orcusprep.in

NCERT INDEPTH

medium

Duchenne

Becker

Myotonic

Limb-Girdle

Q238. Match the disorder with its primary cause:

Disorder	Primary Cause
Tetany	?
Osteoporosis	?
Gout	?

Source: orcusprep.in

NCERT INDEPTH

medium

Tetany: Low Ca++; Osteoporosis: Decreased estrogen/age; Gout: Uric acid accumulation

All reversed

Tetany: High Ca++; Osteoporosis: Low vitamin D; Gout: Uric acid

None

Q239. Which of the following disorders involves progressive degeneration of skeletal muscles? Source: orcusprep.in

NCERT INDEPTH

medium

Muscular dystrophy

Myasthenia gravis

Tetany

Arthritis

Q240. All of the following statements about osteoporosis are true EXCEPT: Source: orcusprep.in

NCERT INDEPTH

medium

Common in elderly due to decreased estrogen

Characterized by increased bone mass

Increased risk of fractures

Prevented partly by calcium & vitamin D supplementation

Q241. Which disorder is primarily characterized by inflammation of joints? Source: orcusprep.in

NCERT INDEPTH

medium

Arthritis

Gout

Osteoporosis

Tetany

Q242. How many of the following statements about Gout are correct?
1. Caused by uric acid crystals
2. Usually affects toes first
3. Chronic disorder may lead to kidney stones
4. Caused by calcium deficiency Source: orcusprep.in

NCERT INDEPTH

medium

1,2,3

All 4

1,3

2,4

Q243. Which of the following can be potential triggers of tetany? Source: orcusprep.in

NCERT INDEPTH

medium

Hypocalcemia

Hyperkalemia

Hypercalcemia

Vitamin C deficiency

Q244. Table: Match disorder with affected system and major symptom:

Disorder	Affected System	Major Symptom
Myasthenia gravis	?	?
Muscular dystrophy	?	?
Arthritis	?	?

Source: orcusprep.in

NCERT INDEPTH

medium

Myasthenia gravis: Muscular: Fatigue/paralysis; Muscular dystrophy: Muscular: Progressive weakness; Arthritis: Skeletal: Joint inflammation

All reversed

Myasthenia gravis: Skeletal: Fracture; Muscular dystrophy: Muscular: Spasm; Arthritis: Muscular: Weakness

None

Q245. Which of the following statements are true for muscular dystrophy?
1. Genetic disorder
2. Affects voluntary muscles
3. Can cause early death in severe forms
4. Caused by autoimmune attack on NMJ Source: orcusprep.in

NCERT INDEPTH

medium

1,2,3

All 4

2,3,4

1,4

Q246. Which of the following disorders is linked to age-related decrease in estrogen? Source: orcusprep.in

NCERT INDEPTH

medium

Osteoporosis

Arthritis

Tetany

Gout

Q247. Which of the following statements about arthritis are true?
1. Inflammation of joints
2. Can be autoimmune or wear-and-tear
3. Does not affect movement
4. Can cause swelling and pain Source: orcusprep.in

NCERT INDEPTH

medium

1,2,4

All 4

2,3

1,3,4

Q248. Which type of arthritis is caused by uric acid crystal accumulation? Source: orcusprep.in

NCERT INDEPTH

medium

Gout

Osteoarthritis

Rheumatoid arthritis

Psoriatic arthritis

Q249. How many of the following disorders primarily involve skeletal muscle?
1. Myasthenia gravis
2. Muscular dystrophy
3. Tetany
4. Osteoporosis Source: orcusprep.in

NCERT INDEPTH

medium

1,2,3

All 4

2,3

1,4

Q250. Which of the following statements about tetany is correct? Source: orcusprep.in

NCERT INDEPTH

medium

Caused by low blood calcium and leads to rapid muscle contractions

Caused by low potassium and leads to fatigue

Caused by high sodium and leads to paralysis

Caused by vitamin D deficiency and bone pain

Q251. Match the disorder with its typical population and onset:

Disorder	Population	Onset
Muscular dystrophy	?	?
Osteoporosis	?	?
Myasthenia gravis	?	?

Source: orcusprep.in

NCERT INDEPTH

medium

Muscular dystrophy: Boys/children: Early childhood; Osteoporosis: Elderly: Postmenopause; Myasthenia gravis: Adults: Young adulthood

All reversed

Muscular dystrophy: Adults; Osteoporosis: Children; Myasthenia gravis: Elderly

None

Q252. Which of the following statements about gout are true?
1. More common in men
2. Often affects the big toe first
3. Caused by uric acid crystals
4. Preventable only by exercise Source: orcusprep.in

NCERT INDEPTH

medium

1,2,3

All 4

2,3,4

1,3

Q253. Which disorder is characterized by fatigue, muscle weakness, and is autoimmune in nature? Source: orcusprep.in

NCERT INDEPTH

medium

Myasthenia gravis

Muscular dystrophy

Tetany

Osteoporosis

Q254. How many of the following are genetic disorders affecting skeletal muscles?
1. Muscular dystrophy
2. Myasthenia gravis
3. Tetany
4. Osteoporosis Source: orcusprep.in

NCERT INDEPTH

medium

1

All 4

2,3

1,4

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