Q. No.
Which one of the following is not a biofertilizer?
1. Rhizobium
2. Nostoc
3. Mycorrhiza
4. Agrobacterium
1. Rhizobium
2. Nostoc
3. Mycorrhiza
4. Agrobacterium
| 1. | Clostridium | 2. | Trichoderma |
| 3. | Aspergillus | 4. | Saccharomyces |
| 1. | Azospirillum | 2. | Rhizobium |
| 3. | Nostoc | 4. | Azotobacter |
1. bioremediation of contaminated soils
2. reclamation of wastelands
3. gene transfer in higher plants
4. biological control of soil-borne plant pathogens
Which one of the following pairs is wrongly matched?
1. Methanogens - Gobar gas
2. Yeast - Ethanol
3. Streptomycetes - Antibiotic
4. Coliforms - Vinegar
Select the correct group of biocontrol agents:
1. Nostoc, Azospirillum, Nucleopolyhedrovirus
2. Bacillus thuringiensis. Tobacco mosaic virus, Aphids
3. Trichoderma, Baculovirus, Bacillus thuringiensis
4. Oscilatoria, Rhizobium, Trichoderma
Match the following :
|
(a) |
Lactobacillus |
(i) |
Cheese |
|
(b) |
Saccharomyces cerevisiae |
(ii) |
Curd |
|
(c) |
Aspergillus niger |
(iii) |
Citric Acid |
|
(d) |
Acetobacter aceti |
(iv) |
Bread |
|
(v) |
Acetic acid |
Select the correct option:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (i) | (iii) | (v) |
| 2. | (ii) | (iv) | (v) | (iii) |
| 3. | (ii) | (iv) | (iii) | (v) |
| 4. | (iii) | (iv) | (v) | (i) |
| Column I | Column II | ||
| A. | Citric acid | 1. | Trichoderma |
| B. | Cyclosporin | 2. | Clostridium |
| C. | Statins | 3. | Aspergillus |
| D. | Butyric Acid | 4. | Monascus |
1. A-3, B-1, C-2, D-4
2. A-3, B-1, C-4, D-2
3. A-1, B-4, C-2, D-3
4. A-3, B-4, C-1, D-2
Which of the following in sewage treatment removes suspended solids?
1. Secondary treatment
2. Primary treatment
3. Sludge treatment
4. Tertiary treatment
During secondary treatment, major part of activated sludge is pumped into tanks called
1. Aerobic sludge digesters.
2. Anaerobic sludge digesters.
3. Primary sludge digesters.
4. Settling tanks.
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