Regarding ATP synthesis through chemiosmosis in chloroplasts:
I: The protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids.
II: The primary accepter of electron which is located towards the outer side of the membrane transfers its electron not to an electron carrier but to an H carrier.
III: The NADP reductase enzyme is located on the stroma side of the membrane.
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:  Chemiosmotic hypothesis |
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The biosynthetic phase of photosynthesis is called as the dark reaction because:
I: the biosynthetic process continues for the entire time when the light is unavailable.
II: the biosynthetic process stops when the light becomes available again.
1. Only I is correct
2. Both I and II are incorrect
3. Only II is correct
4. Both I and II are correct
 
Subtopic:  Dark Reaction: Biosynthetic Phase |
 69%
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Out of the given two statements:
Statement I: The Calvin pathway occurs in all photosynthetic plants.
Statement II: All photosynthetic plants have PGA as the first product of CO2 fixation.
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic:  Dark Reaction : Calvin Cycle |
 75%
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The reaction centre in PS II has an absorption maxima at:
1. 780 nm 2. 680 nm
3. 700 nm  4. 660 nm
Subtopic:  Light Reactions |
 88%
From NCERT
NEET - 2023
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How many ATP and NADPH are required for the synthesis of one molecule of glucose during Calvin cycle?
1. 18 ATP and 16 NADPH2 2. 12 ATP and 12 NADPH2
3. 18 ATP and 12 NADPH2 4. 12 ATP and 16 NADPH2
Subtopic:  Dark Reaction : Calvin Cycle |
 87%
From NCERT
NEET - 2023
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Which of the following combinations is required for chemiosmosis? 
1. Proton pump, electron gradient, NADP synthase. 
2. Membrane, proton pump, proton gradient, ATP synthase. 
3. Membrane, proton pump, proton gradient, NADP synthase 
4. Proton pump, electron gradient, ATP synthase 
Subtopic:  Chemiosmotic hypothesis |
 78%
From NCERT
NEET - 2023
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 Match List - I with List - II
List - I List - II
(A) Chlorophyll a (I) Yellow to yellow orange
(B) Chlorophyll b (II) Yellow green
(C) Xanthophyll (III) Blue green
(D) Carotenoids (IV) Yellow
Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. III II IV I
2. III I IV II
3. II III I IV
4. IV III II I
Subtopic:  Pigments |
 81%
From NCERT
NEET - 2023
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Given below are two statements :
Statement I: RuBisCO is the most abundant enzyme in the world.
Statement II:  Photorespiration does not occur in C4 plants.
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic:  Photorespiration |
 83%
From NCERT
NEET - 2023
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Which out of the following statements is incorrect?
1. Grana lamellae have both PS I and PS II
2. Cyclic photophosphorylation involved both PS I and PS II
3. Both ATP and NADPH + H+ are synthesised during non-cyclic photophosphorylation
4. Stroma lamellae lack PS II and NAP reductase
Subtopic:  Light Reaction: Electron Transport |
 80%
From NCERT
NEET - 2023
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Given below are two statements :
Statement I: RuBisCO is the most abundant enzyme in the world.
Statement II:  Photorespiration does not occur in C4 plants.
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but statement II is incorrect
2. Statement I is incorrect but statement II is correct
3. Both statement I and statement II are correct
4. Both statement I and statement II are incorrect
Subtopic:  Photorespiration |
 88%
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