The light- independent reactions of plants function to make organic molecules using carbon dioxide as a carbon source. What is the electron source that helps reduce carbon dioxide to sugars and other organic molecules?
A) electrons from oxygen
B) ATP
C) NADPH
D) NADH

Question

Quizplus · Accepted Answer

NADPH is the electron source that helps reduce carbon dioxide to sugars and other organic molecules in the light-independent reactions. ATP provides the energy needed for this process, but does not directly provide electrons for reduction. NADH is not involved in this process. Electrons from oxygen are not used in the light-independent reactions.

The Light- Independent Reactions of Plants Function to Make Organic