Q. No.The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals include the:
1.
Halophiles
2.
Thermoacidophiles
3.
Methanogens
4.
Eubacteria
Which of the following is wrongly matched in the given table?
|
Microbe |
Product |
Application |
|
|
1. |
Trichoderma polysporum |
Cyclosporin A |
Immunosuppressive drug |
|
2. |
Monascus purpureus |
Statins |
Lowering of blood cholesterol |
|
3. |
Streptococcus |
Streptokinase |
Removal of clot from blood vessel |
|
4. |
Clostridium butylicum |
Lipase |
Removal of oil stains |
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 |
Codes:
|
(a) |
(b) |
(c) |
(d) |
|
|
1. |
(iii) |
(i) |
(iv) |
(ii) |
|
2. |
(i) |
(iv) |
(ii) |
(iii) |
|
3. |
(iii) |
(iv) |
(i) |
(ii) |
|
4. |
(iii) |
(i) |
(ii) |
(iv) |
Which of the following, in sewage treatment, removes suspended solids?
1. Secondary treatment
2. Primary treatment
3. Sludge treatment
4. Tertiary treatment
Select the mismatch:
1. Rhodospirillum - Mycorrhiza
2. Anabaena - Nitrogen fixer
3. Rhizobium - Alfalfa
4. Frankia - Alnus
Which of the following is correctly matched for the product produced by them?
1. Methanobacterium : Lactic acid
2. Penicillium notatum : Acetic acid
3. Saccharomyces cerevisiae : Ethanol
4. Acetobacter aceti : Antibiotics
Conversion of milk to curd improves its nutritional value by increasing the amount of
1. Vitamin B12
2. Vitamin A
3. Vitamin D
4. Vitamin E
BOD of waste water is estimated by measuring the amount of:
1. total organic matter
2. biodegradable organic matter
3. oxygen evolution
4. oxygen consumption.
What would happen if oxygen availability to activated sludge flocs is reduced?
| 1. | It will slow down the rate of degradation of organic matter. |
| 2. | The center of flocs will become anoxic, which would cause the death of bacteria and eventually breakage of flocs. |
| 3. | Flocs would increase in size as anaerobic bacteria would grow around flocs. |
| 4. | Protozoa would grow in large numbers. |
What important nutrient is added to the curd that is produced with the help of LAB [Lactic Acid Bacteria]?
| 1. | Vitamin A | 2. | Cyanocobalamin |
| 3. | Essential amino acids | 4. | Essential fatty acids |
© 2025 GoodEd Technologies Pvt. Ltd.