During non-cyclic photophosphorylation, when electrons are lost from the reaction center at PS II, what is the source which replaces these electrons?
1. Oxygen
2. Water
3. Carbon dioxide
4. Light
| 1. | ATP | 2. | NADH |
| 3. | NADPH | 4. | Oxygen |
Read the following four statements A, B, C and D and select the right option having both correct statements:
STATEMENTS:
| (A) | Z-scheme of light reaction takes place in the presence of PSI only |
| (B) | Only PSI functional in cyclic photophosphorylation |
| (C) | Cyclic photophosphorylation results in a synthesis of ATP and NADPH2 |
| (D) | Stroma lamellae lack PSII as well as NADP |
Options:
| 1. | A and B |
| 2. | B and C |
| 3. | C and D |
| 4. | B and D |
Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP
Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on:
1. Membrane potential
2. Accumulation of K ions
3. Proton gradient
4. Accumulation of Na ions