Question

During glycolysis, glucose is broken down into two molecules of pyruvate. What is the main transformation that occurs during glycolysis?

A. Glycolysis produces ATP by oxidizing water.

B. Glycolysis produces ATP and pyruvate by oxidizing glucose and NAD+.

C. Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose.

D. Glycolysis produces CO2, ATP, and pyruvate by reducing glucose.

Answer 1

C. Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose.

Answer 2

The correct answer is option C.

Explanation:

Glycolysis is the initial step in the breakdown of glucose to produce energy for cellular respiration. It serves as the base for both anaerobic and aerobic cellular respiration. During glycolysis, the glucose molecule is converted into pyruvate molecule.

In this process, two molecules of ATP (4 ATP formed - 2 ATP used in initiating the process) and two molecules of NADH also formed.

Thus, the correct answer is option C.