- 1(current)
Q. No.A C3 plant is provided CO2 labelled with a radioactive isotope. In the chloroplast, during the process of photosynthesis, the radioactivity is expected to appear first in:
1. RuBP
2. PEP
3. OAA
4. PGA
1. RuBP
2. PEP
3. OAA
4. PGA
Subtopic: Â Photorespiration |
 70%
Level 2: 60%+
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Hints
Consider the two statements regarding the photorespiratory pathway:
| Statement I: | There is neither synthesis of sugars, nor of ATP. |
| Statement II: | It results in the release of CO2 with the utilisation of ATP. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Â Light Reaction: Electron Transport |Â Dark Reaction: Biosynthetic Phase |Â Dark Reaction : Calvin Cycle |Â C4 Cycle (Hatch & Slack Pathway) |Â C4 Plants Examples |Â CAM Pathway |Â Photorespiration |
 81%
Level 1: 80%+
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Hints
Please attempt this question first.
When the CO2: O2 is nearly equal:
| 1. | RuBisCO has a much greater affinity for CO2 |
| 2. | RuBisCO has a much greater affinity for O2 |
| 3. | RuBisCO has an equal affinity for CO2 and O2 |
| 4. | RuBisCO has no affinity for CO2 |
Subtopic: Â Photorespiration |
 84%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
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