Which of the Following Statements is True of ATP Usage

Question

Which of the following statements is true of ATP usage in gluconeogenesis and glycolysis?
A) ATP is consumed during both gluconeogenesis and glycolysis.
B) ATP is produced during both gluconeogenesis and glycolysis.
C) ATP is consumed during gluconeogenesis and produced during glycolysis.
D) ATP is produced during gluconeogenesis and consumed during glycolysis.

Accepted Answer

Both gluconeogenesis and glycolysis require ATP, but the usage is opposite. Gluconeogenesis requires energy to synthesize glucose from non-carbohydrate sources, so ATP is consumed. Glycolysis, on the other hand, breaks down glucose to produce energy in the form of ATP, so ATP is produced. Therefore, option C is correct - ATP is consumed during gluconeogenesis and produced during glycolysis.