Question

multiple choice question which is the first step in electron transport? light energy excites electrons in photosystem ii, releasing an electron into the electron transport system. the electron - acceptor molecule transfers the electrons along a series of electron - carriers to photosystem i. photosystem i transfers the electrons to a protein called ferrodoxin.

Explanation:

In the electron - transport process in photosynthesis, the first step is that light energy excites electrons in photosystem II, releasing an electron into the electron - transport system. The other two options describe subsequent steps in the electron - transport chain.

Answer:

Light energy excites electrons in photosystem II, releasing an electron into the electron transport system.