- 1(current)
Q. No.The electrons needed to replace those removed from PS I are provided by:
| 1. | The LHC | 2. | Water |
| 3. | NADPH | 4. | PS II |
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The stroma lamellae membranes:
1. have both PS II and NADP reductase enzyme
2. have PS II but not NADP reductase enzyme
3. lack PS II but have NADP reductase enzyme
4. lack both PS II and NADP reductase enzyme
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Oxygen, during oxygenic photosynthesis, is produced during:
1. cyclic photophosphorylation
2. the light-dependent reactions involving photosystems I and II
3. Calvin cycle
4. the Krebs cycle
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Identify the correct statement regarding the functioning of photosystem II?
| 1. | The reaction center is P700. |
| 2. | It works after PS I in non cyclic photophosphorylation. |
| 3. | Water splits and carbon dioxide is released. |
| 4. | The electron vacancies in P680 are filled by electrons derived from water. |
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The extra ATP required [as compared to NADPH] in Calvin cycle comes from:
| 1. | photosystem II | 2. | photosystem I |
| 3. | cyclic electron flow | 4. | non cyclic electron flow |
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The correct sequence of flow of electrons in the light reaction is
| 1. | PSII, plastoquinone, cytochromes, PS I, ferredoxin |
| 2. | PSI, plastoquinone, cytochromes, PS II, ferredoxin |
| 3. | PSI, ferredoxin, PS II, |
| 4. | PSI, plastoquinone, cytochromes, PS II, ferredoxin |
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- 1(current)
Q. No.
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