Q1.
Conversion of milk to curd improves its nutritional value by increasing the amount of
Q2.
Dough kept overnight in warm weather becomes soft and spongy because of
Q3.
During the formation of bread it becomes porous due to release of CO2 by the action of
Q4.
In cheese manufacture, the microorganisms are important for
Q5.
Match the following columns and select the correct option.
Column-I
(A) Clostridium butylicum
(B) Trichoderma polysporum
(C) Monascus purpureus
(D) Aspergillus niger
Column-II
(i) Cyclosporin-A
(ii) Butyric acid
(iii) Citric acid
(iv) Blood cholesterol lowering agent
Q6.
Which of the following is a commercial blood cholesterol lowering agent?
Q7.
| Match the following organisms with the products they produce |
| List I |
List II |
| (a) Lactobacillus |
(i) Cheese |
| (b) Saccharomyces cerevisiae |
(ii) Curd |
| (c) Aspergillus niger |
(iii) Citric acid |
| (d) Acetobacter aceti |
(iv) Bread |
|
(v) Acetic acid |
| Select the correct option. |
Q8.
Which of the following is correctly matched for the product produced by them?
Q9.
| Match column I with column II and select the correct option using the codes given below. |
|---|
| Column I | | Column II |
|---|
| A. Citric Acid | (i) | Trichoderma |
| B. Cyclosporin A | (ii) | Clostridium |
| C. Statins | (iii) | Aspergillus |
| D. Butyric acid | (iv) | Monascus |
| Options: |
1) A-iii, B-i, C-ii, D-iv
2) A-iii, B-i, C-iv, D-ii
3) A-i, B-iv, C-ii, D-iii
4) A-iii, B-iv, C-i, D-ii |
Q10.
Which of the following is wrongly matched in the given table?
Q11.
| Match the following list of microbes and their importance. |
|---|
| Column I | | Column II |
|---|
| A. Saccharomyces cerevisiae | (i) | Production of immunosuppressive agent |
| B. Monascus purpureus | (ii) | Ripening of Swiss cheese |
| C. Trichoderma polysporum | (iii) | Commercial production of ethanol |
| D. Propionibacterium sharmanii | (iv) | Production of blood - Cholesterol lowering agent |
Q12.
A good producer of citric acid is
Q13.
Monascus purpureus is a yeast used commercially in the production of
Q14.
A patient brought to a hospital with myocardial infarction is normally immediately given
Q15.
Read the following four statements (A-D).
(A) Colostrum is recommended for the new born because it is rich in antigens.
(B) Chikungunya is caused by a Gram negative bacterium.
(C) Tissue culture has proved useful in obtaining virus-free plants.
(D) Beer is manufactured by distillation of fermented grape juice.
How many of the above statements are wrong?
Q16.
The most common substrate used in distilleries for the production of ethanol is
Q17.
Ethanol is commercially produced through a particular species of
Q18.
Continuous addition of sugars in fed batch fermentation is done to
Q19.
Read the following statement having two blanks (A and B).
____A_____drug used for a patients is obtained from a species of the organism _____B____.
Q20.
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
Q21.
Which one of the following pairs is wrongly matched?
Q23.
Which of the following is used to manufacture ethanol from starch?
Q24.
Yeast (Saccharomyces cerevisiae) is used in the industrial production of
Q25.
Which of the following microorganisms is used for production of citric acid in industries?
Q26.
Which of the following is the false statement about antibiotics?
Q27.
The citric acid is produced by
Q28.
The organism, used for alcohol fermentation, is
Q29.
Which of the following is put into anaerobic sludge digester for further sewage treatment?
Q30.
Which of the following in sewage treatment removes suspended solids?
Q31.
What gases are produced in anaerobic sludge digesters?
Q32.
Secondary sewage treatment is mainly a
Q33.
Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?
Q34.
The guts of cow and buffalo possess
Q35.
In gobar gas, the maximum amount is that of
Q36.
Organisms called methanogens are most abundant in a
Q37.
Which one of the following pairs is wrongly matched?
Q38.
A major component of gobar gas is
Q39.
Which bacteria is utilized in gobar gas plant?
Q40.
Which of the following can be used as a biocontrol agent in the treatment of plant disease?
Q41.
Select the correct group of biocontrol agents.
Q42.
Microbe used for biocontrol of pest butterfly caterpillars is
Q43.
Which one of the following is an example of carrying out biological control of pests/diseases using microbes?
Q44.
A common biocontrol agent for the control of plant diseases is
Q45.
Which of the following is not used as a biopesticide?
Q46.
Trichoderma harzianum has proved a useful microorganism for
Q47.
A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of
Q48.
When a natural predator (living being) is applied on the other pathogen organism to control them, this process is called
Q50.
One of the major difficulties in the biological control of insect pest is that
Q51.
Biological control of agricultural pests, unlike chemical control, is
Q52.
Select the mismatch.
Q53.
A nitrogen-fixing microbe associated with Azolla in rice fields is
Q54.
Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition?
Q55.
A prokaryotic autotrophic nitrogen fixing symbiont is found in
Q56.
Which one of the following helps in absorption of phosphorus from soil by plants?
Q57.
Which one of the following is not a biofertiliser?
Q58.
An organism used as a biofertilizer for raising soybean crop is
Q59.
The common nitrogen-fixer in paddy fields is
Q60.
Which one of the following is not used in organic farming?
Q61.
An example of endomycorrhiza is
Q62.
Nitrogen fixation in root nodules of Alnus is brought about by
Q63.
Which one of the following pairs is not correctly matched?
Q64.
A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
Q65.
Which of the following is the pair of biofertilizers?
Q66.
Which aquatic fern is used to increase the yield in paddy crop?
Q67.
Which of the following fern is an excellent biofertilizer?
Q68.
Due to which of the following organism, yield of rice is increased?
Q69.
Which of the following is non-symbiotic biofertilizer?
Q70.
Farmers have reported over 50% higher yields of rice by using which of the following biofertilizer?
Q71.
The biofertilizers are
Q72.
Which of the following species does not have the ability to fix atmospheric nitrogen?
Q73.
Which one of the following statements is correct?