- 1(current)
Q. No.Bundle sheath cells:
| 1. | are rich in PEP carboxylase |
| 2. | lack RuBisCo |
| 3. | lack both RuBisCo and PEP carboxylase |
| 4. | are rich in RuBisCo |
Subtopic: Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) |
78%
Level 2: 60%+
NEET - 2013
Hints
The NADP reductase enzyme:
| I: | is located on the stroma side of thylakoid membrane |
| II: | is the last enzyme in the transfer of electrons during photosynthesis from PS I to NADPH |
| 1. | Both I and II are correct |
| 2. | Both I and II are incorrect |
| 3. | I is correct |
| 4. | II is correct |
Subtopic: Dark Reaction : Calvin Cycle |
83%
Level 1: 80%+
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The Calvin cycle begins when CO2 reacts with
| 1. | phosphoenolpyruvate |
| 2. | glyceraldehyde-3-phosphate |
| 3. | ribulose bisphosphate |
| 4. | oxaloacetate |
Subtopic: Dark Reaction : Calvin Cycle |
84%
Level 1: 80%+
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How 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 |
90%
Level 1: 80%+
NEET - 2023
Hints
The enzyme directly responsible for almost all carbon fixation on Earth is
1. rubisco
2. PEP carboxylase
3. ATP synthase
4. phosphofructokinase
1. rubisco
2. PEP carboxylase
3. ATP synthase
4. phosphofructokinase
Subtopic: Dark Reaction : Calvin Cycle |
92%
Level 1: 80%+
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The inputs for are CO2, NADPH, and ATP.
| 1. | cyclic electron transport |
| 2. | the carbon fixation reactions |
| 3. | noncyclic electron transport |
| 4. | photosystems I and II |
Subtopic: Dark Reaction : Calvin Cycle |
70%
Level 2: 60%+
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In the ‘Regeneration’ stage of the Calvin cycle:
| 1. | Five G3P molecules produce three RuBP molecules, using up three molecules of ATP. |
| 2. | Three G3P molecules produce five RuBP molecules, using up three molecules of ATP. |
| 3. | Three G3P molecules produce five RuBP molecules, using up five molecules of ATP. |
| 4. | Five G3P molecules produce three RuBP molecules, using up five molecules of ATP. |
Subtopic: Dark Reaction : Calvin Cycle |
Level 3: 35%-60%
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Consider the given two statements:
| Assertion (A): | Plants that do not use PEP-carboxylase in primary carbon fixation are called C3 plants. |
| Reason (R): | C3 plants are so called because, the primary carboxylation reaction, catalyzed by RuBisCO, produces the three-carbon 3-phosphoglyceric acids directly in the Calvin-Benson cycle. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) explains (A) |
| 3. | Both (A) and (R) are True but (R) does not explain (A) |
| 4. | (A) is False but (R) is True |
Subtopic: Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) |
50%
Level 3: 35%-60%
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- 1(current)
Q. No.
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