Question

where is the light energy converted into an electron flow?
a) within the nadp+ molecule
b) at the atp - synthase
c) at each individual accessory pigment molecule
d) in the reaction center chlorophyll

Explanation:

• NADP+ acts as an electron acceptor, not the site of light-to-electron flow conversion.
• ATP-synthase uses proton gradient to make ATP, not convert light energy to electron flow.
• Accessory pigments only absorb and transfer light energy, not initiate electron flow.
• Reaction center chlorophyll absorbs light energy, excites electrons, and starts the electron flow in photosynthesis.

Answer:

d) In the reaction center chlorophyll