Statement I: | When only PS I is functional, the electron is circulated within the photosystem and the phosphorylation occurs due to cyclic flow of electrons. |
Statement II: | Cyclic photophosphorylation also occurs when only light of wavelengths beyond 680 nm are available for excitation. |
1. | Both Statement I and Statement II are correct |
2. | Both Statement I and Statement II are incorrect |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
I: | Plastoquinone is located within the membrane |
II: | Plastocyanin is located on the inner lumen side of the membrane |
III: | NADP reductase is located on the stroma side of the membrane |
1. | Only I and II are correct |
2. | Only I and III are correct |
3. | Only II and III are correct |
4. | I, II and III are correct |
Statement I: | CF1 particle of ATP synthase makes ATP molecules. |
Statement II: | CF1 particle of ATP synthase is embedded in the thylakoid membrane and forms a transmembrane channel that carries out facilitated diffusion of protons across the membrane. |
1. | Both Statement I and Statement II are correct |
2. | Both Statement I and Statement II are incorrect |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
1. | OAA | 2. | PEP |
3. | PGA | 4. | RuBP |
1. | 2 carbon ketose sugar | 2. | 2 carbon aldose sugar |
3. | 5 carbon ketose sugar | 4. | 5 carbon aldose sugar |
I: | The C4 acid OAA is formed in the mesophyll cells. |
II: | Malic acid or aspartic acid are transported to the bundle sheath cells. |
III: | C4 acids are broken down to release carbon dioxide and a 3 carbon molecule in mesophyll cells. |
IV: | The 3 carbon molecule is transported back to the bundle sheath cell where it is converted to PEP again. |
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 |
Statement I: | In C4 plants, photorespiration does not occur. |
Statement II: | C4 plants do not have RuBisCO in any of their cells. |
1. | Both Statement I and Statement II are correct and Statement II explains Statement I |
2. | Both Statement I and Statement II are correct but Statement II does not explain Statement I |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
Statement I: | Despite the presence of a green leaf, optimal light and carbon dioxide conditions, the plant may not photosynthesize if the temperature is very low. |
Statement II: | If a chemical process is affected by more than one factor, then its rate will be determined by the factor which is nearest to its minimal value. |
1. | Both Statement I and Statement II are correct and Statement II explains Statement I |
2. | Both Statement I and Statement II are correct but Statement II does not explain Statement I |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |