AP BIOLOGY

PHOTOSYNTHESIS

THE CHLOROPLAST

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the process where the energy in light is used to break up a molecule of water?
A
hydrolysis
B
photolysis
C
glycolysis
D
nicolysis
Explanation: 

Detailed explanation-1: -Splitting of H2O molecules into hydrogen ions and oxygen in the presence of light and stroma is photolysis.

Detailed explanation-2: -By using light energy, water is split to form oxygen, and hydrogen and electron are released. This is known as the photolysis of water. Water acts as a reducing agent that provides H+ ions and it converts NADP to NADPH. The different dissolved mineral is absorbed by the plants along with the water.

Detailed explanation-3: -photolysis, chemical process by which molecules are broken down into smaller units through the absorption of light. The best-known example of a photolytic process is the experimental technique known as flash photolysis, employed in the study of short-lived chemical intermediates formed in many photochemical reactions.

Detailed explanation-4: -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-5: -In this process of photolysis (“splitting by light”), H2O molecules are broken into hydrogen ions, electrons, and oxygen atoms. The electrons replace those originally lost from chlorophyll.

There is 1 question to complete.