Question

What is the total number of ATP produced during glycolysis?

Answer 1

Glycolysis:

1. As a result of a sequence of events known as glycolysis, glucose molecules split into two 3-carbon molecules known as pyruvate and release ATP as energy.
2. It is the earliest phase of cellular respiration and a very old route.
3. Glycolysis follows a specific pathway that is catalyzed by different enzymes, just like all metabolic activities.
4. It consists of two phases and begins in the cytoplasm of a cell, the energy-releasing phase, and the energy-investment phase, respectively.
5. One glucose molecule yields four ATP molecules in total during glycolysis.
6. Since 2 ATP molecules are used up in the first phase of glycolysis, there is a net gain of 2 ATP molecules.
7. In addition, glycolysis results in the production of 2 NADH molecules.