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 am hesitating between 4 options to answer the following question, which option should I choose?
Question: The end result in the process of photosynthesis is the production of sugar and oxygen. Which step signals the beginning of photosynthesis?
Possibilities:
- 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.

Chlorophyll in the leaf captures light energy.