Question

which molecule is a high - energy output of the light reactions? hydrogen atp oxygen adp

Explanation:

In the light - reactions of photosynthesis, energy from sunlight is used to generate high - energy molecules. ATP (adenosine triphosphate) is produced through photophosphorylation and stores chemical energy in its high - energy phosphate bonds. Hydrogen is often carried in the form of NADPH. Oxygen is a by - product. ADP is a low - energy molecule that gets converted to ATP.

Answer:

B. ATP