What gases are produced in anaerobic sludge digesters?
1. Methane and CO2.
2. Methane, Hydrogen sulphide and CO2.
3. Methane, Hydrogen sulphide and CO.
4. Hydrogen sulphide and CO2.
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Match the following list of microbes and their importance.
(a) |
Saccharomyces cerevisiae |
(i) |
Production of immunosuppressive drug |
(b) |
Moancus purpureus |
(ii) |
Ripening of Swiss cheese |
(c) |
Trichoderma polysporum |
(iii) |
Commercial production of ethanol |
(d) |
Propionibacterium shermanii |
(iv) |
Production of blood cholesterol lowering agents |
(a) (b) (c) (d)
1. (iii) (i) (iv) (ii)
2. (iii) (iv) (i) (ii)
3. (iv) (iii) (ii) (i)
4. (iv) (ii) (i) (iii)
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 |
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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) |
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Which of the following, in sewage treatment, removes suspended solids?
1. Secondary treatment
2. Primary treatment
3. Sludge treatment
4. Tertiary treatment
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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
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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.
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