Q. No.An organism used as a bio-fertilizer for raising soybean crop is:
1.
Azospirillum
2.
Rhizobium
3.
Nostoc
4.
Azotobacter
| 1. | Azospirillum | 2. | Rhizobium |
| 3. | Nostoc | 4. | Azotobacter |
Select the correct statement from the following:
| 1. | Biogas is produced by the activity of aerobic bacteria on animal waste |
| 2. | Methanobacterium is an aerobic bacterium found in the rumen of cattle |
| 3. | Biogas, commonly called gobar gas, is pure methane |
| 4. | Activated sludge-sediment in settlement tanks of sewage treatment plant is a rich source of aerobic bacteria |
A common biocontrol agent for the control of plant diseases is:
1. Baculovirus
2. Bacillus thuringiensis
3. Glomus
4. Trichoderma
The common nitrogen-fixer in paddy fields is:
1. Rhizobium
2. Azospirillum
3. Oscillatoria
4. Frankia
Which one of the following is not used in organic farming?
1. Glomus
2. Earthworm
3. Oscillatoria
4. Snail
Which of the following plants you would select for the production of bioethanol?
1. Brassica
2. Zea mays
3. Pongamia
4. jatropha
Which of the following is not used as a biopesticide?
1. Bacillus thuringiensis
2. Trichoderma harzianum
3. Nucleopolyhedrovirus(NPV)
4. Xanthomonas campestris
Which one of the following pairs is wrongly matched?
1. Detergents-Lipase
2. Alcohol-Nitrogenase
3. Fruit juice-Pectinase
4. Textile-Amylase
1. bioremediation of contaminated soils
2. reclamation of wastelands
3. gene transfer in higher plants
4. biological control of soil-borne plant pathogens
1. acidophiles
2. alkaliphiles
3. thermoacidophiles
4. thermophiles
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