Question

What is the final electron receptor in the light reaction of photosynthesis?

Answer 1

Answer: Nicotinamide adenine dinucleotide phosphate (NADP)

Explanation:

Photosynthesis is a metabolic process in which light is transformed into stable chemical energy, converting inorganic matter into organic matter.  

This process is mainly divided in two parts:  

-Light-dependent reactions (also called light reactions)

-Light-independent reactions (also called dark reactions).

In the case of light reactions, the light is used by the plant to produce organic energy molecules, being the coenzyme Nicotinamide adenine dinucleotide phosphate (NADP) the final electron acceptor.

It should be noted, this coenzyme is also involved in the dark phase of photosynthesis, in which carbon dioxide ($CO_{2}$) is fixed into carbohydrates.