Question

Why is it important for light dependent reactions to separate water?

Answer 1

Light-dependent reactions:

1. The production of the energy-storing atom ATP and the diminished electron transporter NADPH, which are needed for the next phase of photosynthesis, is accomplished via light-dependent reactions.
2. Light reactions take place in the thylakoid membranes of organelles called the chloroplast.
3. The light reaction or the photolysis reaction takes place in the grana of chloroplasts.
4. The photosystems include the pigment molecules.
5. One of the vital pigments in plants that efficiently participate in light reactions is chlorophyll.
6. The chlorophyll will get activated by the sunlight and split water molecules.
7. When a water molecule is split, oxygen, hydrogen, and electrons are produced.
8. These electrons pass via chloroplast organelles and undergo chemiosmosis to create ATP.
9. NADPH, which is then used in light-independent processes, is produced from hydrogen.
10. Oxygen gas diffuses from the organism as a waste product.
11. Therefore, it is necessary to split water molecules to create hydrogen, electrons, and oxygen which are further used in ATP formation.