What is the main purpose of the 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 the light-dependent reactions of photosynthesis is to produce both NADPH and ATP, which are then used in the light-independent reactions (also known as the Calvin cycle) to produce glucose. Option A is incorrect because the generation of oxygen is a byproduct of the light-dependent reactions and not its main purpose. Option B is incorrect because NADPH is not used in respiration, but rather in the Calvin cycle. Option D is incorrect because ATP is not used to make glucose, but rather in the Calvin cycle as well.

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