Chemical energy is absorbed through the roots. Light energy is converted to chemical energy. Chlorophyll in the leaf captures light energy. Sunlight is converted into chlorophyll.
I gave my students this multiple choice question: The end result in the process of photosynthesis is the production of sugar and oxygen. Which step signals the beginning of photosynthesis?

Only one answer is correct among these 4 choices:
- Chemical energy is absorbed through the roots.
- Light energy is converted to chemical energy.
- Chlorophyll in the leaf captures light energy.
- Sunlight is converted into chlorophyll.

Could you tell me which one is correct?

Chlorophyll in the leaf captures light energy.