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:  Light Reaction: Photophosphorylation |
 84%
Level 1: 80%+
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:  Light Reaction: Photophosphorylation |
 77%
Level 2: 60%+
NEET - 2018
Hints

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:  Light Reaction: Photophosphorylation | Light Reactions |
 83%
Level 1: 80%+
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:  Light Reaction: Photophosphorylation |
 78%
Level 2: 60%+
AIPMT - 2009
Hints

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:  Light Reaction: Photophosphorylation |
 95%
Level 1: 80%+
AIPMT - 2005
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