What is true regarding PSI and PSII?
1. PS I works before PS II during the light reaction
2. A single chlorophyll a molecule makes the reaction center in both PS I and PS II
3. The reaction center of PS I is P680 and in PS II is P700
4. LHC is seen in PS I but not in PS II
The correct statements about photosynthesis include:
I: | the light-dependent reactions can occur only in the light, the light-independent reactions only in the dark |
II: | photorespiration is more efficient at producing glucose than is photosynthesis |
III: | the light-dependent reactions produce the energy-rich compounds that are used to run the light-independent reactions |
1. | I only | 2. | III only |
3. | I and III only | 4. | II and III only |
I: | is associated with PS II |
II: | releases one molecule of oxygen on splitting of two water molecules |
III: | releases protons and oxygen in the thylakoid lumen |