- 1(current)
Q. No.
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During photorespiration, the oxygen consuming reaction(s) occur in :
1. stroma of chloroplasts and mitochondria
2. stroma of chloroplasts and peroxisomes
3. grana of chloroplasts and peroxisomes
4. stroma of chloroplasts
Subtopic: Photorespiration |
52%
Level 3: 35%-60%
| Assertion(A): | Photorespiration is considered as an evolutionary relic. |
| Reason(R): | Unlike normal cellular respiration it uses ATP rather than generating it and unlike photosynthesis it produces no sugar. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of the (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Photorespiration |
Level 3: 35%-60%
| Assertion(A): | A reduction in photorespiration by genetic engineering or because of increasing atmospheric carbon dioxide (due to fossil fuel burning) may not benefit plants as has been proposed. |
| Reason(R): | Photorespiration may be necessary for the assimilation of nitrate from soil. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Photorespiration |
Level 3: 35%-60%
A possible purpose of photorespiration may be:
| 1. | assimilation of nitrate from the soil |
| 2. | translocation of carbohydrates |
| 3. | enhanced PGR efficiency |
| 4. | differentiation of plant cells |
Subtopic: Photorespiration |
53%
Level 3: 35%-60%
- 1(current)
Q. No.
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