AP BIOLOGY

Detailed explanation-1: -Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.

Detailed explanation-2: -Therefore, glucose and oxygen are the products of photosynthesis. After photosynthesis, plants use the glucose for cellular processes and release the oxygen as a waste product. In cellular respiration, glucose and oxygen react to form carbon dioxide, water, and heat energy.

Detailed explanation-3: -Oxygen (O2) is evolved during photosynthetic electron transport when water is split by the oxygen-evolving complex to provide protons and electrons to the chloroplastic electron chain, thereby generating ATP and NADPH-the energy source and reducing power for plant metabolism.

Detailed explanation-4: -Oxygen gas is produced during photosynthesis which is utilised by all the living organisms for their survival.

Detailed explanation-5: -During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.