Q. No.For a biocontrol agent to be part of an integrated pest management, it should be:
1. species-specific and symbiotic
2. free living and broad spectrum
3. narrow spectrum and symbiotic
4. species-specific and inactive on non-target organisms
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Which of the following statements about methanogens is not correct?
| 1. | They can be used to produce biogas. |
| 2. | They are found in the rumen of cattle and their excreta. |
| 3. | They grow aerobically and breakdown cellulose-rich food. |
| 4. | They produce methane gas. |
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Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?
1. Aspergillus and Rhizopus
2. Rhizobium and Rhizopus
3. Cyanobacteria and Rhizobium
4. Aspergillus and Cyanobacteria
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Common cold is not cured by antibiotics because it is
1. caused by a virus
2. caused by a Gram-positive bacterium
3. caused by a Gram-negative bacterium
4. not an infectious disease
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Probiotics are
1. live microbial food supplement
2. safe antibiotics
3. cancer-inducing microbes
4. new kind of food allergens
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
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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Select the mismatch:
1. Rhodospirillum - Mycorrhiza
2. Anabaena - Nitrogen fixer
3. Rhizobium - Alfalfa
4. Frankia - Alnus
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 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)
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