AP BIOLOGY

Detailed explanation-1: -During Light reactions of Photosynthesis, the chlorophyll will be activated by light. This light activated chlorophyll will split the water molecule. This process is called Photolysis. Water molecule is split to release H+ ions and also oxygen.

Detailed explanation-2: -In photosynthesis, a light-dependent reaction uses light energy from the sun to split water which has been taken in by the organism. Water, when split, gives oxygen, hydrogen, and electrons. These electrons move through structures in chloroplasts and, by chemiosmosis, make ATP.

Detailed explanation-3: -These reactions use photolysis, or the use of light energy to split water molecules and produce oxygen. In these light-dependent reactions, light energy is absorbed by chlorophyll and other pigments and transferred to the reaction center of photosystem II.

Detailed explanation-4: -This absorption of light energy helps split water molecules into hydrogen and oxygen, generating free electrons. Each splitting of a water molecule releases a pair of electrons that form the electron transport chain and initiate the pumping of hydrogen molecules into the inner part of the chloroplast called thylakoid.

Detailed explanation-5: -Products of Light-Dependent Reactions First, the PSII light receptor molecules capture light and excite molecules. This process leads to photolysis, as water molecules are broken into hydrogen and oxygen. The oxygen is released and the hydrogen builds up within the thylakoid membrane.