The 2-carbon compound formed in photorespiration is:
1. | Acetyl CoA | 2. | Phosphoglycolate |
3. | Acetic acid | 4. | Ethanol |
I: | there is no synthesis of sugars |
II: | there is release of carbon dioxide with the utilization of ATP |
III: | ATP is synthesized but NADPH is not synthesized |
a. | They have a special type of leaf anatomy |
b. | They tolerate higher temperature |
c. | They show a response to high light intensities |
d. | They lack a process called photorespiration |
e. | They have greater productivity of biomass |
1. | All except [e] |
2. | [b], [c] and [d] only |
3. | All |
4. | [a], [b], [d] and [e] only |
Photorespiration is a wasteful process. Why is it so?
1. | The number of ATP molecules produced in the pathway is very low. |
2. | The number of NADPH molecules produced in the pathway is very low. |
3. | The synthesis of sugars in the pathway requires a large input of ATP energy. |
4. | There is neither synthesis of sugars, nor of ATP in the pathway. |
The greatest problem with photorespiration is faced by:
1. | C4 plants | 2. | C3 plants |
3. | CAM plants | 4. | purple sulfur bacteria |
The process of photosynthesis has lower efficiency if photorespiration occurs because of the reduced formation of:
1. | AcetylCoA | 2. | 3-phosphoglycerate |
3. | ATP | 4. | RuBP |
In the diagram showing relation between Calvin cycle and Photorespiration the molecule labeled X can be:
1. Oxygen
2. Ammonia
3. Nitric oxide
4. Hydrogen sulfide