- 1(current)
Q. No.1. Nitrogen fixation
2. Phosphate absorption
3. Photosynthesis
4. Bicontrol
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion (A): | Use of chemical fertilisers in agriculture worldwide should be avoided. |
| Reason (R): | Chemical fertilisers, contrary to popular belief, are ineffective and do not add any nutrients to the soil. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | (A) is True; (R) is False. |
| 3. | (A) is False; (R) is True. |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. Increasing its tolerance to drought
2. Enhancing its resistance to root pathogens
3. Enhancing its phosphorus uptake capacity
4. Biological nitrogen fixation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following microbes, capable of fixing atmospheric nitrogen, is an important biofertilizer in paddy fields?
1. Rhizobium
2. Frankia
3. Azotobacter
4. Anabaena
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| (a) | Rhizobium forms a symbiotic association with leguminous plants and helps in fixing atmospheric nitrogen into organic forms, benefiting the plant. |
| (b) | Azospirillum and Azotobacter are examples of symbiotic nitrogen-fixing bacteria that enrich soil nitrogen content. |
1. (a) only
2. (b) only
3. Both (a) and (b)
4. Neither (a) nor (b)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAzolla is used in the cultivation of:
| 1. | Maize | 2. | Sorghum |
| 3. | Wheat | 4. | Rice |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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