Q. No.The accessory pigments of photosynthesis:
I. include Carotenoids and Xanthophylls but not Chlorophyll b.
II. enable a wider range of wavelength of incoming light to be utilised for photosynthesis.
III. protect Chlorophyll a from photo-oxidation.
1. Only I and II are correct
2. Only I and III are correct
3. I, II and III are correct
4. Only II and III are correct
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1. Light absorption
2. Water splitting and oxygen release
3. Formation of ATP and NADPH
4. Fixation of carbon
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| I: | Plastoquinone is located within the membrane |
| II: | Plastocyanin is located on the inner lumen side of the membrane |
| III: | NADP reductase is located on the stroma side of the membrane |
| 1. | Only I and II are correct |
| 2. | Only I and III are correct |
| 3. | Only II and III are correct |
| 4. | I, II and III are correct |
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| 1. | Carboxylation → Reduction →Regeneration |
| 2. | Carboxylation → Regeneration →Reduction |
| 3. | Regeneration → Reduction → Carboxylation |
| 4. | Reduction → Regeneration → Carboxylation |
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| 1. | OAA | 2. | PEP |
| 3. | PGA | 4. | RuBP |
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| 1. | 2 carbon ketose sugar | 2. | 2 carbon aldose sugar |
| 3. | 5 carbon ketose sugar | 4. | 5 carbon aldose sugar |
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1. has no affinity for oxygen
2. has a much greater affinity for carbon dioxide
3. has a much greater affinity for oxygen
4. has equal affinity for both carbon dioxide and oxygen
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Statement I: Despite the presence of a green leaf, optimal light and carbon dioxide conditions, the plant may not photosynthesize if the temperature is very low.
Statement II: If a chemical process is affected by more than one factor, then its rate will be determined by the factor which is nearest to its minimal value.
1. Both Statement I and Statement II are correct and Statement II explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
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| Statement I: | Green house crops such as tomatoes and bell pepper are allowed to grow in carbon dioxide enriched atmosphere. This leads to higher yields. |
| Statement II: | C3 plants respond to higher carbon dioxide concentration by showing increased rates of photosynthesis, leading to higher productivity. |
| 1. | Both Statement I and Statement II are correct and Statement II explains Statement I |
| 2. | Both Statement I and Statement II are correct but Statement II does not explain Statement I |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
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