What is the total number of ATP produced during glycolysis?
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Solution
Glycolysis:
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.
It is the earliest phase of cellular respiration and a very old route.
Glycolysis follows a specific pathway that is catalyzed by different enzymes, just like all metabolic activities.
It consists of two phases and begins in the cytoplasm of a cell, the energy-releasing phase, and the energy-investment phase, respectively.
One glucose molecule yields four ATP molecules in total during glycolysis.
Since 2 ATP molecules are used up in the first phase of glycolysis, there is a net gain of 2 ATP molecules.
In addition, glycolysis results in the production of 2 NADH molecules.