- 1(current)
Q. No.Which of the following statements is incorrect?
| 1. | Grana lamellae have both PS I and PS II. |
| 2. | Cyclic photophosphorylation involves both PS I and PS II. |
| 3. | Both ATP and NADPH + H+ are non-cyclic synthesized during photophosphorylation. |
| 4. | Stroma lamellae have PS I only and lack NADP reductase. |
Subtopic: Â Light Reaction: Photophosphorylation |
 80%
From NCERT
NEET - 2021
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During non-cyclic photophosphorylation, when electrons are lost from the reaction center at PS II, what is the source which replaces these electrons?
| 1. | Oxygen | 2. | Water |
| 3. | Carbon dioxide | 4. | Light |
Subtopic: Â Light Reaction: Photophosphorylation |
 82%
From NCERT
NEET - 2020
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Which of the following is not a product of light reaction of photosynthesis?
| 1. | ATP | 2. | NADH |
| 3. | NADPH | 4. | Oxygen |
Subtopic: Â Light Reaction: Photophosphorylation |
 74%
From NCERT
NEET - 2018
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Hints
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Read the following four statements A, B, C and D and select the right option having both correct statements:
STATEMENTS:
| (A) | Z-scheme of light reaction takes place in the presence of PSI only |
| (B) | Only PSI functional in cyclic photophosphorylation |
| (C) | Cyclic photophosphorylation results in a synthesis of ATP and NADPH2 |
| (D) | Stroma lamellae lack PSII as well as NADP |
Options:
1. A and B
2. B and C
3. C and D
4. B and D
Subtopic: Â Light Reaction: Photophosphorylation |Â Light Reactions |
 82%
From NCERT
AIPMT - 2010
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Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP
Subtopic: Â Light Reaction: Photophosphorylation |
 78%
From NCERT
AIPMT - 2009
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Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on:
1. Membrane potential
2. Accumulation of K ions
3. Proton gradient
4. Accumulation of Na ions
Subtopic: Â Light Reaction: Photophosphorylation |
 95%
From NCERT
AIPMT - 2005
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NEET 2025 - Target Batch
Hints
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- 1(current)
Q. No.
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