Indicate whether the following statements about photosynthes

Indicate whether the following statements about photosynthesis are true or false.

-Photosystem I accepts electrons from water and allows them to enter the electron transport chain.

-Photosystem II provides electrons with sufficient energy to reduce NADP⁺ to NADPH.

-The electrons that reduce cytochrome b₆f complex provide energy to move protons across the thylakoid membrane.

-The production of ATP by ATP synthase depends, in part, on the movement across the thylakoid membrane of protons that were once part of water molecules.

-An exited electron associated with photosystem I may be used to reduce NADP⁺.

Solution

1. False. Electrons moves from H2O through PSII to PSI then on to the NADP+

2. True. Electrons moves from H2O through PSII to PSI then on to the NADP+ via absoption of light and electron transport leading to the formation of O2 from H2O and finally reduction of NADP+ to NADPH

3. True. The ecetron that reduce cytochrome b6f complex provide energy in the form of ATP to move proton across the thylacoid membrane.

4. True. The production of ATP by ATP synthase depends, in part, on the movement across the thylakoid membrane of protons that were once part of water molecules

5. True. An exited electron associated with photosystem I may be used to reduce NADP+ to NADPH