Which of the following are required for the dark reaction of photosynthesis?
A: Light
B: Chlorophyll
C: CO2
D: ATP
E: NADPH
Choose the correct answer from the options given below:
1. B, C and D only
2. C, D and E only
3. D and E only
4. A, B and C only

Subtopic:  Dark Reaction: Biosynthetic Phase | Dark Reaction : Calvin Cycle |
 64%
From NCERT
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How many molecules of ATP and NADPH are required for every molecule of \(\text{CO}_2\) fixed in the Calvin cycle?
1. 2 molecules of ATP and 2 molecules of NADPH
2. 3 molecules of ATP and 3 molecules of NADPH
3. 3 molecules of ATP and 2 molecules of NADPH
4. 2 molecules of ATP and 3 molecules of NADPH
Subtopic:  Dark Reaction : Calvin Cycle |
 76%
From NCERT
NEET - 2024
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Given below are two statements:
Statement I: In \(\text{C}_3\) plants, some \( \text{O}_2\) binds to \(\text{RuBisCO},\) hence \(\text{CO}_2\) fixation is decreased.
Statement II: In \( \text{C}_4\) plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.

In the light of the above statements, choose the correct answer from the option given below:
1. Both Statement I and Statement II are False
2. Statement I is True but Statement II is False
3. Statement I is False but Statement II is True
4. Both Statement I and Statement II are True
Subtopic:  Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) | Photorespiration |
 57%
From NCERT
NEET - 2024
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The photochemical phase of photosynthesis include:
A. Oxygen release
B. Formation of NADPH
C. Use of ATP
D. Water splitting
E. Carboxylation
Choose the correct answer from the options given below:
1. C and E only
2. A, B and D only
3. B, C and E only
4. A, B, C and D only
Subtopic:  Light Reaction: Electron Transport |
 64%
From NCERT
NEET - 2024
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Match List-I with List-II
List-I List-II
A C4 Pathway I. \(2\text{H}_2\text{O}\rightarrow4\text{H}^++\text{O}_2=4\text{e}^-\)
B. Light reaction II. Ribulose 1,5-bisphosphate
C. Photorespiration III. -carbon molecule phosphoenol
D.  Calvin cycle   IV.  Phosphoglycolate
Choose the correct answer from the options given below :
1. A-II, B-I, C-IV, D-III
2. A-IV, B-II, C-I, D-III
3. A-III, B-I, C-IV, D-II
4. A-III, B-IV, C-II, D-I
Subtopic:  Photosystems | Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) | Photorespiration |
 80%
From NCERT
NEET - 2024
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How many molecules of ATP and NADPH are required, respectively, for fixation of every CO2 molecule entering the Calvin cycle?
1. 2 and 4
2. 4 and 2
3. 3 and 2
4. 2 and 3
Subtopic:  Dark Reaction : Calvin Cycle |
 88%
From NCERT
NEET - 2024
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Synthesis of ATP linked to development of a proton gradient across a membrane is:
1. Mass flow hypothesis
2. Wobble hypothesis
3. Chemiosmotic hypothesis
4. Rivet Popper hypothesis
Subtopic:  Chemiosmotic hypothesis |
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From NCERT
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Which of the following are required for the light reaction of photosynthesis?
A. \(\mathrm {CO}_2\)
B. \(\mathrm {O}_2\)
C. \(\mathrm {H_2O}\)
D. Chlorophyll 
E. Light 
1. A , C, D and E only 
2. C, D and E only 
3. A and B only
4. A, C and E only
Subtopic:  Light Reaction: Electron Transport |
 57%
From NCERT
NEET - 2024
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Which one of the following products diffuses out chloroplast during photosynthesis? 
1. ADP 
2. NADPH 
3. \(O_2\)
4. ATP
Subtopic:   WHERE ARE THE ATP AND NADPH USED |
 82%
From NCERT
NEET - 2024
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Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option:

1. A-Carboxylation, B-Regeneration, C-Reduction
2. A-Reduction, B-Decarboxylation, C-Regeneration 
3. A-Carboxylation, B-Reduction, C-Regeneration 
4. A-Reduction, B-Carboxylation, C-Regeneration 
Subtopic:  Dark Reaction : Calvin Cycle |
 87%
From NCERT
NEET - 2024
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