Question 5

(Multiple Choice)

Which of the following represents the CORRECT order of events in the two-photosystem light reactions of photosynthesis?


A) Photosystem I is the first to receive a photon of light.
B) Photosystem II receives electrons from plastocyanin at the end of the electron transfer chain from the excited reaction center of photosystem I.
C) Photosystem I receives electrons from plastocyanin at the end of the electron transfer chain from the excited reaction center of photosystem II.
D) Photosystem I receives electrons from ferredoxin at the end of the electron transfer chain from the excited reaction center of photosystem II.
E) The final electron acceptor, NADP+, receives electrons from plastocyanin at the end of the electron transfer chain from the excited reaction center of photosystem I.

Answer