Sunlight is considered essential for photosynthesis because it provides the energy needed to drive the process.
- During the light-dependent stage of photosynthesis, chlorophyll absorbs sunlight.
This light energy is then used to:
Split water molecules into hydrogen and oxygen (a process called photolysis).- Convert ADP to ATP and NADP⁺ to NADPH, which are energy-rich molecules.
- These energy carriers are then used in the dark reaction to form glucose from carbon dioxide.
- Without sunlight, the plant cannot produce ATP or NADPH, so photosynthesis cannot occur.
No comments:
Post a Comment