Wize University Biology Textbook > Cellular Respiration
Glycolysis [short]
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Glycolysis
Glycolysis is a catabolic process in which ATP is produced through the extraction of chemical energy from glucose to produce pyruvate.
- Glycolysis is split into two main phases: the investment phase (ATP is spent to phosphorylate) and the payout phase (ATP is produced).

Glycolysis Products
At the end of glycolysis, the energy from glucose has been stored in:
- 2 pyruvate
- 2 ATP
- 2 NADH
Pyruvate produced by glycolysis has 2 possible fates cellular respiration if oxygen is present, or fermentation if it is not.
Practice: First Five Steps of Glycolysis
What is the yield of the first 5 steps of glycolysis? Select all that apply.
Which of the following processes occurs in the cytosol of eukrayotes?
Practice: Product of Glycolysis
What is the carbohydrate product of glycolysis in the cytosol?