Q. No.Match the following microorganism with product
Column - I
Column - II
(a)
Clostridium butylicum
(i)
Cyclosporin A
(b)
Trichoderma polysporunt
(ii)
Butyric acid
(c)
Monascus purpureus
(iii)
Citric acid
(d)
Aspergillus niger
(iv)
Blood cholesterol lowering agent
(a)
(b)
(c)
(d)
1.
(ii)
(i)
(iv)
(iii)
2.
(i)
(ii)
(iv)
(iii)
3.
(iv)
(iii)
(ii)
(i)
4.
(iii)
(iv)
(ii)
(i)
For the commercial and industrial production of Citric Acid, which of the following microbes is used?
1. Aspergillus niger
2. Lactobacillus sp
3. Saccharomyces cerevisiae
4. Clostridium bretylium
Match the following columns and select the correct option:-
|
Column I |
Column II |
||
|
(a) |
Dragonflies |
(i) |
Biocontrol agents of several plant pathogens |
|
(b) |
Bacillus thuringiensis |
(ii) |
Get rid of mosquitoes |
|
(c) |
Glomus |
(iii) |
Narrow spectrum insecticidal applications |
|
(d) |
Baculoviruses |
(iv) |
Biocontrol agents of lepidopteran plant pests |
|
(v) |
Absorb phosphorus from soil |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (v) | (iv) | (i) |
| 2. | (ii) | (i) | (iii) | (iv) |
| 3. | (ii) | (iii) | (iv) | (v) |
| 4. | (ii) | (iv) | (v) | (iii) |
Cyclosporin A, used as an immuno-suppression agent, is produced from:
1. Monascus purpureus
2. Saccharomyces cerevisiae
3. Penicillium notatum
4. Trichoderma polysporum
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
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. |
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 |
Domestic sewage in large cities:
| 1. | is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plant (STPs) |
| 2. | when treated in STPs, does not require the aeration step as the sewage contains adequate oxygen |
| 3. | has very high amounts of suspended solids and dissolved salts |
| 4. | has a high BOD as it contains both aerobic and anaerobic bacteria |
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
1. Aspergillus niger – citric acid
2. Yeast – statins
3. Acetobacter aceti – acetic acid
4. Clostridium butylicum – lactic acid
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