NEET BIOLOGY

Detailed explanation-1: -Splitting of H2O molecules into hydrogen ions and oxygen in the presence of light and grana is photolysis. The photolysis reaction is carried out by the photosystem II which is present in the membrane of thylakoids. A photosystem is made up of chlorophyll molecules and some other proteins.

Detailed explanation-2: -Electrolysis is the process of using electricity to split water into hydrogen and oxygen. This reaction takes place in a unit called an electrolyzer.

Detailed explanation-3: -Photosynthesis: A light reaction that sets plants apart This absorption of light energy helps split water molecules into hydrogen and oxygen, generating free electrons.

Detailed explanation-4: -The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas. After the sugar is produced, it is then broken down by the mitochondria into energy that can be used for growth and repair.