Glycolysis occurs in the cytoplasm of the cell. This is the part of the cell that is outside the nucleus and contains various organelles suspended in a gel-like fluid called cytosol.
The process of glycolysis involves a series of chemical reactions that convert glucose into pyruvate, producing a small amount of ATP (adenosine triphosphate) in the process. Since glycolysis does not require oxygen, it can take place in both aerobic and anaerobic conditions, making it a crucial pathway for energy production in many types of cells.