Question

during the light dependent reactions of photosynthesis, what is the main function of water? it provides carbon for glucose, absorbs sunlight, acts as a buffer, OR it supplies electrons

Answer 1

which answer choice is correct

Answer 2

During the light-dependent reactions of photosynthesis, the main function of water is to supply electrons. Water molecules are split in a process called photolysis, which occurs in the thylakoid membranes of the chloroplasts. This reaction generates electrons that replace those lost by chlorophyll in photosystem II when it absorbs light energy. In addition to supplying electrons, the splitting of water also produces oxygen as a byproduct and contributes protons (H+) to the formation of a proton gradient, which is used to produce ATP and NADPH.

Answer 3

The correct answer choice is **"it supplies electrons."**