What is the main purpose of light-dependent reactions of photosynthesis?
A) to generate oxygen by "splitting" H2O
B) to produce NADPH for use in respiration
C) to produce NADPH and ATP
D) to use ATP to make glucose

Question

Quizplus · Accepted Answer

The main purpose of light-dependent reactions of photosynthesis is to produce NADPH and ATP, which are used as energy sources in the light-independent reactions to make glucose. The splitting of H2O also occurs in the light-dependent reactions, but its purpose is to generate electrons for the production of NADPH, not to generate oxygen. The production of NADPH is not for use in respiration, but rather for use in photosynthesis.

What Is the Main Purpose of Light-Dependent Reactions of Photosynthesis