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Q. No.In C4 plants, the additional number of ATP molecules required for the synthesis of a glucose molecule when compared to C3 plants is:
1. 2
2. 5
3. 12
4. 30
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
61%
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The primary carbon dioxide acceptor in Calvin cycle in C3 plants is:
| 1. | PEP (phosphoenol pyruvate) |
| 2. | RuBP (ribulose-1-5-biphosphate) |
| 3. | PGA (phosphoglyceric acid) |
| 4. | PG (phosphoglycolate) |
Subtopic: Dark Reaction : Calvin Cycle |
83%
From NCERT
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The ions comprising the Oxygen Evolving Complex associated with PS II are:
1. Manganese and magnesium
2. Manganese and chlorine
3. Calcium and iron
4. Magnesium and iron
1. Manganese and magnesium
2. Manganese and chlorine
3. Calcium and iron
4. Magnesium and iron
Subtopic: Light Reaction: Electron Transport |
64%
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What is the name of the 2-carbon compound formed in photorespiration?
| 1. | Acetyl CoA | 2. | Phosphoglycolate |
| 3. | Acetic acid | 4. | Ethanol |
Subtopic: Photorespiration |
76%
From NCERT
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During which of the following process is the most ATP produced in aerobic cellular respiration?
| 1. | glycolysis |
| 2. | the Krebs cycle |
| 3. | chemiosmosis |
| 4. | substrate-level phosphorylation |
Subtopic: Chemiosmotic hypothesis |
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Consider the given two statements:
| I: | PS I is so called because it was discovered before Photosystem II. |
| II: | Photosystem II is the first protein complex in the light-dependent reactions of oxygenic photosynthesis. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Photosystems |
66%
From NCERT
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Consider the given two statements:
| Assertion (A): | The primary acceptor of carbon dioxide in C3 plants is a 2-carbon compound. |
| Reason (R): | The first stable product of carbon dioxide fixation in C3 plants is a 3-carbon compound. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Dark Reaction : Calvin Cycle |
87%
From NCERT
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There is a clear division of labor within the chloroplast. Which of the following will be true?
1. Only A is correct.
2. Only B is correct.
3. Both A and B are correct.
4. Both A and B are incorrect.
| A: | The membrane system is responsible for trapping the light energy and also for the synthesis of ATP and NADPH. |
| B: | In stroma, enzymatic reactions synthesize sugar, which in turn forms starch. |
2. Only B is correct.
3. Both A and B are correct.
4. Both A and B are incorrect.
Subtopic: Chloroplast Structure |
92%
From NCERT
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Consider the given two statements:
| Assertion (A): | In C4 plants, photorespiration does not occur. |
| Reason (R): | They have a mechanism that increases the concentration of carbon dioxide at the site of RuBisCO. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
87%
From NCERT
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The cell type in which the Calvin cycle takes place in C3 and C4 plants respective are:
| 1. | Mesophyll; Bundle sheath |
| 2. | Bundle sheath; Mesophyll |
| 3. | Mesophyll; Mesophyll |
| 4. | Bundle sheath; Bundle sheath |
Subtopic: Dark Reaction : Calvin Cycle |
89%
From NCERT
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