In a Plant, Which of the Following Reactions Produces Molecular

Question

In a plant, which of the following reactions produces molecular oxygen (O2)?
A) the light reactions alone
B) the Calvin cycle alone
C) the light reactions and the Calvin cycle
D) neither the light reactions nor the Calvin cycle

Accepted Answer

The light reactions of photosynthesis involve splitting water molecules to produce molecular oxygen (O2) as a byproduct, which is then released into the atmosphere.