The Biology Project: Biochemistry

Metabolism Problem Set

Problem 11: Fermentation

In the absence of oxygen, the primary purpose of fermentation is to:

A. produce amino acids for protein synthesis

B. generate a proton gradient for ATP synthesis

C. oxidize glucose to generate reduce electron carriers

D. generate alcohol for beverages

E. regenerate NAD+ from NADH allowing glycolysis to continue

Fermentation allows continued glycolysis by regenerating NAD+ from NADH. NAD+ is limiting, and must be reformed to allow the continuation of the glycolytic degradation of glucose producing ATP.

The Biology Project
University of Arizona
Tuesday, August 20, 1996
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