The Biology Project: Biochemistry

Photosynthesis Problem Set 1

Problem 5 Tutorial: Overall energy source

The overall source of energy for photosynthesis is:

Energy source for photosynthesis
Light is a form of energy. Light energy is absorbed by pigments in the thylakoid membranes. These pigment molecules, with added energy, can lose electrons and begin the chain of oxidation-reduction reactions and proton movements that eventually leads to ATP and NADPH synthesis.

The Biology Project
University of Arizona
Thursday, October 3, 1996
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