ATP are used in the energy investment stage of glycolysis and a net of

ATP are returned.

By the way, glycolysis has cost the cell two ATP molecules and produced two small, three-carbon sugar molecules ... The second half of glycolysis: return on investment: The second half of glycolysis involves phosphorylation without ATP investment (step 6) and produces two NADH and four ATP molecules per glucose.

How many ATP are invested in glycolysis? 2 ATP

During glycolysis, one glucose molecule is split into two pyruvate molecules, using 2 ATP while producing 4 ATP and 2 NADH molecules