Glycolysis leads to the production of ____________ and two molecules of ATP. In the absence of oxygen, fermentation leads to the production of ______________. Glycolysis plus the citric acid cycle can convert the carbons of glucose to _________ , storing the energy as ATP, _____________ and ___________.

A. lactic acid, pyruvate, CO₂, NADH, FADH₂

B. pyruvate, lactic acid, CO₂, NADH, FADH₂

In glycolysis, glucose with six carbons is converted into two molecules of pyruvate, each with three carbons.

In fermentation, pyruvate is reduced by NAD⁺ producing lactic acid.

In the citric acid cycle, the carbons of glucose are converted to CO₂ and the H atoms used to reduce NAD⁺ and FAD forming NADH and FADH₂.

C. CO₂, NADH, FADH₂, lactic acid, pyruvate

D. O₂, lactic acid, pyruvate, FADH₂

E. glucose, lactic acid, CO₂, NADH, FADH₂