- 1(current)
Q. No.Light Harvesting Complex (LHC) or antenna of a photosystem includes all the following except:
1. Chlorophyll a
2. Chlorophyll b
3. Xanthophylls
4. Carotenoids
1. Chlorophyll a
2. Chlorophyll b
3. Xanthophylls
4. Carotenoids
Subtopic: Light Reaction: Photophosphorylation | Light Reactions :1 | Light Reactions :2 | Light Reactions :3 |
89%
From NCERT
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The products of non-cyclic photophosphorylation include:
| 1. | ATP and P700 | 2. | ATP and NADPH |
| 3. | ADP and NADP | 4. | P700 and P680 |
Subtopic: Light Reaction: Photophosphorylation |
86%
From NCERT
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The given diagram shows the scheme of:
| 1. | Cyclic photophosphorylation and Y is NADPH |
| 2. | Cyclic photophosphorylation and Y is ATP |
| 3. | Non-Cyclic photophosphorylation and Y is NADPH |
| 4. | Non-Cyclic photophosphorylation and Y is ATP |
Subtopic: Light Reaction: Photophosphorylation |
80%
From NCERT
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The reduction of NADP + to NADPH + H+ during non-cyclic photophosphorylation directly requires:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | electrons that come from water. |
| II: | protons that are removed from the stroma. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Light Reaction: Photophosphorylation | Light Reactions :1 | Light Reactions :2 | Light Reactions :3 | Light Reactions |
65%
From NCERT
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Which of the following replaces the electrons removed from the reaction center chlorophyll-A molecule of the photosystem I in non-cyclic photophosphorylation?
1. The light harvesting complex of PS-I
2. Water
3. PS-II
4. NADPH
Subtopic: Light Reaction: Photophosphorylation |
From NCERT
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What is a critical difference between cyclic and non-cyclic photophosphorylation?
| 1. | Cyclic photophosphorylation produces ATP and NADPH, while non-cyclic produces only ATP. |
| 2. | Non-cyclic photophosphorylation involves both photosystems, while cyclic involves only one. |
| 3. | Cyclic photophosphorylation produces oxygen, whereas non-cyclic does not. |
| 4. | Non-cyclic photophosphorylation requires light, cyclic does not. |
Subtopic: Light Reaction: Photophosphorylation |
89%
From NCERT
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Consider the following two statements:
The stromal lamellae membranes in the chloroplast lack
A: Photosystem II
B: NADP reductase enzyme
1. Only A is correct
2. Only B is correct
3. Both A and B are correct.
4. Both A and B are incorrect.
The stromal lamellae membranes in the chloroplast lack
A: Photosystem II
B: NADP reductase enzyme
1. Only A is correct
2. Only B is correct
3. Both A and B are correct.
4. Both A and B are incorrect.
Subtopic: Light Reaction: Photophosphorylation |
81%
From NCERT
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