- 1(current)
Q. No.Consider the two statements:
| I: | Current availability of carbon dioxide levels is limiting to the C4 plants. |
| II: | C3 plants have a much lower temperature optimum than C4 plants. |
| 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: C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples | Factors Affecting Photosynthesis |
61%
From NCERT
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What is not true regarding the factors affecting the rate of photosynthesis?
| 1. | There is a linear relationship between incident light and carbon dioxide fixation rates at low light intensities. |
| 2. | Current availability of carbon dioxide levels is limiting to the C4 plants. |
| 3. | C4 plants respond to higher temperatures and show higher rates of photosynthesis |
| 4. | Water stress causes the stomata to close, hence reducing the availability of carbon dioxide |
Subtopic: Factors Affecting Photosynthesis |
79%
From NCERT
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Consider the two statements:
I. Elevated atmospheric CO2 increases the instantaneous rate of photosynthesis in C3 plants.
II. Current availability of atmospheric CO2 level is limiting to the C3 plants.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. Both I and II are incorrect
Subtopic: Factors Affecting Photosynthesis |
64%
From NCERT
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Q. No.
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