Final answer:
The coenzyme reduced by glycolysis is NAD+. During the breakdown of glucose in glycolysis, NAD+ is converted to NADH, which is essential for energy production. Thus, the correct answer is NAD+.
Explanation:
Answer to the Question
The coenzyme reduced by glycolysis from the options provided is NAD+. In glycolysis, glucose is broken down into pyruvate, and during this metabolic process, NAD+ is reduced to form NADH. This reduction happens through the dehydrogenation reactions where electrons are transferred from glucose to the coenzyme, facilitating important energy production within cells.
Understanding Glycolysis
During glycolysis, each molecule of glucose undergoes several enzymatic reactions, ultimately yielding two molecules of pyruvate along with a net gain of two molecules of ATP (adenosine triphosphate) and two molecules of NADH. The conversion of NAD+ to NADH is crucial as NADH carries electrons to the electron transport chain, contributing to further ATP production in the aerobic respiration process. Therefore, from the choices given:
- a. glucose - substrate
- b. NAD+ - coenzyme reduced
- c. oxygen - not reduced in glycolysis
- d. pyruvate - end product
It is clear that the correct answer is NAD+.
Learn more about glycolysis here:
https://brainly.com/question/42440611