Answer:
1. Chlorophyll absorbs light
2. Water split to start electron transport chain
3. ATP produced
4. ATP used to build glucose form carbon dioxide
Explanation:
Photosynthesis is the process whereby green plants synthesize their food (glucose) in the presence of sunlight. This photosynthetic process occurs in two major stages viz: light dependent and light independent phases.
In the light dependent phase, the following occurs sequentially:
- Chlorophyll absorbs light energy from sun
- The energy is used to split water molecule in a process called PHOTOLYSIS OF WATER in order to start electron transport chain.
- The electron transport chain yields ATP and NADPH, which will be used in the next phase.
In the light independent phase, also called, CALVIN CYCLE, ATP is used to power the formation of glucose from carbon dioxide