The Biology Project: Biochemistry

Photosynthesis Problem Set 1

Problem 1: Chloroplast compartments

Correct!

The light reactions of photosynthesis occur in the __________,
and the dark reactions occur in the __________ of the chloroplast.

A cytochromes, stroma

B thylakoid membranes, stroma

The oxidation-reduction reactions involved in oxidation of water, reduction of NADP+, and synthesis of ATP via a chemiosmotic mechanism are located in the thylakoid membranes of the chloroplast. The soluble enzymes involved in the synthesis of glucose from carbon dioxide and water, and utilizing the ATP and NADPH produced during the light reactions are in the stroma compartment of the chloroplast.

C reaction centers, cytochromes

D stroma, cytochromes

E antenna complexes, reaction centers

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