The Biology Project: Biochemistry

Metabolism Problem Set

Problem 1:Glucose conversion


Glycolysis leads to the production of ____________ and two molecules of ATP. In the absence of oxygen, fermentation leads to the production of ______________. Glycolysis plus the citric acid cycle can convert the carbons of glucose to _________ , storing the energy as ATP, _____________ and ___________.

A. lactic acid, pyruvate, CO2, NADH, FADH2

B. pyruvate, lactic acid, CO2, NADH, FADH2

In glycolysis, glucose with six carbons is converted into two molecules of pyruvate, each with three carbons. In fermentation, pyruvate is reduced by NAD+ producing lactic acid. In the citric acid cycle, the carbons of glucose are converted to CO2 and the H atoms used to reduce NAD+ and FAD forming NADH and FADH2.

C. CO2, NADH, FADH2, lactic acid, pyruvate

D. O2, lactic acid, pyruvate, FADH2

E. glucose, lactic acid, CO2, NADH, FADH2

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