Photochemical reactions in the chloroplast are directly involved in [2...
The photochemical phase of photosynthesis involves fixing light energy and photolysis of water producing ATP and NADPH.
View all questions of this test
Photochemical reactions in the chloroplast are directly involved in [2...
Chloroplasts contain light trapping chlorophyll molecules. The chlorophyll molecules are an essential requirement for light reaction. The light energy is trapped by chlorophyll molecules for carrying out photolysis of water i.e., light dependent split of water molecules and photophosphorylation i.e., light dependent synthesis of adenosine triphosphate (ATP) by phosphorylation of adenosine diphosphate (ADP).
Photochemical reactions in the chloroplast are directly involved in [2...
Photolysis of water and phosphorylation of ADP to ATP
Photolysis of water is a process that occurs in the thylakoid membranes of the chloroplast during the light-dependent reactions of photosynthesis. In this process, water molecules are split into oxygen, protons, and electrons by the energy from sunlight. This reaction releases oxygen as a byproduct, which is essential for aerobic respiration and life on Earth.
The electrons produced from the photolysis of water are used to drive the electron transport chain, leading to the synthesis of ATP through phosphorylation of ADP. This ATP is a high-energy molecule that serves as a source of energy for various cellular processes, including the Calvin cycle in the chloroplast where carbon fixation occurs.
Therefore, the photochemical reactions in the chloroplast are directly involved in the photolysis of water and the phosphorylation of ADP to ATP. These reactions are crucial for the production of ATP, which is essential for the synthesis of glucose and starch during the light-independent reactions of photosynthesis.
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.