- 1(current)
Q. No.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
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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow 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
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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGiven below are two statements:
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
| 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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch List-I with List-II
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
| 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 |
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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow 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
1. 2 and 4
2. 4 and 2
3. 3 and 2
4. 2 and 3
Subtopic: Dark Reaction : Calvin Cycle |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyObserve 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
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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow many ATP and NADPH2 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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe 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 |
To view explanation, please take trial in the course below.
NEET 2025 - Target Batch
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen 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
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 |
To view explanation, please take trial in the course below.
NEET 2025 - Target Batch
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
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