Q. No.Besides paddy fields, cyanobacteria are also found inside vegetative part of
1. Pinus
2. Cycas
3. Equisetum
4. Psilotum
1. Pinus
2. Cycas
3. Equisetum
4. Psilotum
During sewage treatment, biogases are produced which include :
1. Methane, hydrogen sulphide, carbon dioxide
2. Methane, oxygen, hydrogen sulphide
3. Hydrogen sulphide, methane, sulphur dioxide
4. Hydrogen sulphide, nitrogen, methane
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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
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