- 1(current)
Q. No.| Assertion(A): | When simultaneously exposed to light of both red and far red wavelengths, the rate of photosynthesis is far higher than the sum of the red light and far red light photosynthesis rates. |
| Reason(R): | Two photosystems, processing different wavelengths, cooperate in photosynthesis. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Photosystems |
73%
Level 2: 60%+
What conclusion can be drawn from the finding that while some bacteria have only photosystem I, cyanobacteria have both?
| 1. | Photosystem II was lost in some species as it was selected against by the nature. |
| 2. | Photosystem I must be more ancestral. |
| 3. | Photosystem II may have evolved to be more photoprotective. |
| 4. | Cyclic photphosprolylation is more important than non cyclic photophosphorylation. |
Subtopic: Photosystems |
Level 3: 35%-60%
- 1(current)
Q. No.
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