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
NEET - 2024
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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 |
 75%
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 |
 56%
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 |
 77%
From NCERT
NEET - 2024
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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 |
 86%
From NCERT
NEET - 2023
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The ratio of carbon dioxide fixation between C4 plants and C3 plants is : 

1.2:1 2.2: 3 
3.1:1 4.1:2 
Subtopic:  Dark Reaction : Calvin Cycle |
 58%
NEET - 2022
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NEET 2025 - Target Batch
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When one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase?
1. 1 ATP + 1 NADPH
2. 1 ATP + 2 NADPH
3. 2 ATP + 1 NADPH
4. 2 ATP + 2 NADPH
Subtopic:  Dark Reaction : Calvin Cycle |
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
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To view explanation, please take trial in the course.
NEET 2025 - Target Batch