Question

Both the phosphorylation of intermediates and the formation of ATP in glycolysis are examples of

A) substrate-level phosphorylation.
B) product-level phosphorylation.
C) oxidative phosphorylation.
D) anabolic phosphorylation.
E) aerobic phosphorylation.

Answer 1

The phosphorylation of intermediates and ATP formation in glycolysis are examples of substrate-level phosphorylation.

Step-by-step explanation:

Both the phosphorylation of intermediates and the formation of ATP in glycolysis are examples of substrate-level phosphorylation. This process involves the transfer of a phosphate group directly from a phosphorylated intermediate, like 1,3-bisphosphoglycerate, to ADP, forming ATP. It is different from oxidative phosphorylation, which occurs in the mitochondria and involves the electron transport chain and chemiosmosis, and generates the majority of ATP during aerobic respiration.