- 1(current)
Q. No.The ‘light reaction’ of photosynthesis in higher plants does not include:
| 1. | Light absorption |
| 2. | Water splitting and oxygen release |
| 3. | Formation of ATP and NADPH |
| 4. | Fixation of carbon |
Subtopic: Dark Reaction: Biosynthetic Phase | Light Reactions |
89%
Level 1: 80%+
Hints
What is true regarding PSI and PSII?
| 1. | PS I works before PS II during the light reaction |
| 2. | A single chlorophyll a molecule makes the reaction center in both PS I and PS II |
| 3. | The reaction center of PS I is P680 and in PS II is P700 |
| 4. | LHC is seen in PS I but not in PS II |
Subtopic: Light Reactions |
82%
Level 1: 80%+
Hints
The correct statements about photosynthesis include:
| I: | the light-dependent reactions can occur only in the light, the light-independent reactions only in the dark |
| II: | photorespiration is more efficient at producing glucose than is photosynthesis |
| III: | the light-dependent reactions produce the energy-rich compounds that are used to run the light-independent reactions |
| 1. | I only | 2. | III only |
| 3. | I and III only | 4. | II and III only |
Subtopic: Light Reaction: Electron Transport | Dark Reaction: Biosynthetic Phase | Light Reactions |
80%
Level 1: 80%+
Hints
The splitting of water during oxygenic photosynthesis in higher plants:
| I: | is associated with PS II |
| II: | releases one molecule of oxygen on splitting of two water molecules |
| III: | releases protons and oxygen in the thylakoid lumen |
| 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 |
Subtopic: Light Reactions |
75%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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