A) If one molecule of glucose undergoes the reaction of glycolysis, what is produced?

Answer 1

When one molecule of glucose undergoes glycolysis, the following products are generated:

1. Two molecules of pyruvate: Glucose (a six-carbon molecule) is split into two three-carbon molecules of pyruvate.

2. Two molecules of NADH: During glycolysis, two molecules of NAD⁺ are reduced to NADH, which carry high-energy electrons.

3. Net gain of two molecules of ATP: Although four ATP molecules are produced through substrate-level phosphorylation, two ATP molecules are consumed in the early steps of glycolysis. Therefore, the net gain is two ATP molecules.

In summary, the overall products from the glycolysis of one glucose molecule are:

• 2 pyruvate
• 2 NADH
• 2 ATP (net gain)