40. Which of the following statements regarding substrate-level phosphorylation is correct?

a. Does not involve phosphate transfer

b. Does not produce ATP

c. Depends one distinct enzyme type

d. Occurs twice in glycolysis

Answer: c. Depends one distinct enzyme type

Explanation:

Glycolysis is the common metabolic pathway to all living things and consists of the incomplete oxidation of the glucose in pyruvate and occurs in the cytosol of eukaryotes and prokaryotes. During the substrate-level phosphorylation ATP is generated when a high energy P is directly transferred from a compound phosphorylated (substrate) to ADP. P got its energy during an initial reaction, in which the substrate itself is oxidized. During this process one distinct enzyme (Succinyl CoA) type is used.