3. Energy & Cell Processes

Where do the reactions of glycolysis occur in a eukaryotic cell?

Which of the following is the process in which glucose is oxidized to generate two molecules of pyruvate and in which ATP and NADH are produced?

There is no production of carbon dioxide in glycolysis. Which of the following is the best explanation for this fact?

Which of the following molecules in the process of glycolysis possesses the most chemical energy?

A chemist has discovered a drug that blocks phosphoglucoisomerase, an enzyme that catalyzes the second reaction in glycolysis. He wants to use the drug to kill bacteria in people with infections. However, he cannot do this because __________.

Of the listed metabolic pathways, which is the only pathway found in all organisms?

In glycolysis, ________ is oxidized and ________ is reduced. a. NAD+ ... glucose b. glucose ... oxygen c. ATP ... ADP d. glucose ... NAD+

MAKE CONNECTIONS Step 3 in Figure 9.9 is a major point of regulation of glycolysis. The enzyme phosphofructokinase is allosterically regulated by ATP and related molecules (see Concept 8.5). Considering the overall result of glycolysis, would you expect ATP to inhibit or stimulate activity of this enzyme? Explain. (Hint: Make sure you consider the role of ATP as an allosteric regulator, not as a substrate of the enzyme.)