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Glycolysis is the first step in the breakdown of glucose to extract energy for cellular metabolism. Glycolysis consists of an energy-requiring phase followed by an energy-releasing phase.

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How pyruvate from glycolysis is converted to acetyl CoA so it can enter the citric acid cycle. Pyruvate is modified by removal of a carboxyl group followed by oxidation, and then attached to Coenzyme A.

Fermentation and cellular respiration begin the same way, with glycolysis. In fermentation, however, the pyruvate made in glycolysis does not continue through oxidation and the citric acid cycle, and the …

Learn about glycolysis, the first step in cellular respiration, and its role in breaking down glucose to produce energy.

Learn about glycolysis, the process of breaking down glucose to produce energy, with interactive lessons and practice problems on Khan Academy.

If you look at the number of carbon atoms at the start and the end of glycolysis, the image below shows how it goes. What happened to the extra three carbon atoms of glucose in the process of glycolysis?

Let's explore the process of glycolysis, the first phase of cellular respiration. Learn how this process breaks down glucose into two 3-carbon compounds, using two ATPs in the investment phase and …

The first stage is glycolysis, where you're just literally splitting the glucose into two. You're generating some ATPs. But the more important thing is, you're generating some NADHs that are going to be …