Question

oxygen is produced at what point during photosynthesis​

Answer 1

The oxygen produced in photosynthesis is from the splitting of water within the reaction center in the membrane of the chloroplasts. Two molecules of water are split to create four free protons and one molecule of oxygen.

Answer 2

Answer:

The oxygen is produced at the photolysis stage of photosynthesis.

Explanation:

The green plants contain chloroplasts which trap solar energy and convert the light energy into chemical energy.

• In photosynthesis, energy-rich compounds like carbohydrates are synthesized from simple inorganic compounds like carbon dioxide and water with the help of sunlight.
• Photosynthesis is a two-stage process, one stage is dependent on light and another one is independent of it.
• The light-dependent stage occurs in the grana of a chloroplast. The chlorophyll absorbs visible light energy in the form of photons. Emitted electrons from chlorophyll are channeled through the electron transport chain in the chloroplast. In this light-dependent stage, the splitting of two water molecules yields four electrons, four protons, and molecular oxygen. This is known as the photolysis of water.

                Water + Energy = Hydrogen + Oxygen

Hence, oxygen is produced at the photolysis stage of photosynthesis.