Starting with one molecule of glucose, the energy-containing products of glycolysis are
A. 6 CO2, 2 pyruvate, and 30 ATP.
B. 6 CO2, 2 pyruvate, and 2 ATP.
C. 2 NADH, 2 pyruvate, and 2 ATP.
D. 2 FADH2, 2 pyruvate, and 4 ATP.
E. 2 NAD+, 2 pyruvate, and 2 ATP.
In the presence of oxygen, the three-carbon compound pyruvate can be catabolized in the citric acid cycle. First, however, the pyruvate (1) loses a carbon, which is given off as a molecule of , (2) is oxidized to form a two-carbon compound called acetate, and (3) is bonded to coenzyme A.
These three steps result in the formation of
A. acetyl CoA, FAD, , and .
B. acetyl CoA, NAD+, ATP, and .
C. acetyl CoA, FADH2, and .
D. acetyl CoA, , and ATP.
E. acetyl CoA, NADH, , and .
In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of
A. ATP, CO2, and lactate.
B. ATP, pyruvate, and oxygen.
C. ATP, pyruvate, and acetyl CoA.
D. ATP, NADH, and pyruvate.
E. ATP, CO2, and ethanol (ethyl alcohol)