AP BIOLOGY

Detailed explanation-1: -Photolysis of water is the splitting of water molecules into hydrogen and oxygen in the presence of sunlight. During the process of photosynthesis, photosystem 2 absorbs the light energy. The electrons are energized to the excited state and absorbed by the electron acceptor.

Detailed explanation-2: -In a process called photolysis (’light’ and ‘split’), light energy and catalyst s interact to drive the splitting of water molecules into protons (H+), electrons, and oxygen gas.

Detailed explanation-3: -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-4: -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-5: -This water splitting is achieved by the enzyme photosystem II (PSII).