Question

where does the energy for plants to perform photosynthesis come from?
sunlight
glucose metabolism
breaking down atp
none of the above

Explanation:

Photosynthesis is the process by which plants convert light energy into chemical energy. The key reactant for this process is sunlight, which is absorbed by chlorophyll in plant cells. Glucose metabolism is a process that occurs after photosynthesis to utilize the glucose produced. Breaking down ATP (adenosine triphosphate) is a way cells use energy, not a source for photosynthesis.

Answer:

sunlight