AP BIOLOGY

Detailed explanation-1: -In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water. The light-dependent reactions release oxygen as a byproduct as water is broken apart.

Detailed explanation-2: -Yes, oxygen is produced in the light reaction of photosynthesis in lumen thylakoid by the photolysis of water.

Detailed explanation-3: -The light-dependent reaction of photosynthesis utilizes water (H2O) and produces oxygen (O2). The light reactions of photosynthesis supply the Calvin cycle with carbon dioxide to produce sugars.

Detailed explanation-4: -Photosynthesis occurs in two stages. During the first stage, the energy from sunlight is absorbed by the chloroplast. Water is used, and oxygen is produced during this part of the process. During the second stage, carbon dioxide is used, and glucose is produced.

Detailed explanation-5: -The three products of the light reaction of photosynthesis are ATP, NADPH, and O2.