Question

what happens during glycolysis? hydrogen is removed from water. carbon dioxide is produced. glucose is split into two molecules of pyruvic acid.

Explanation:

Glycolysis is the first step of cellular respiration. During glycolysis, a molecule of glucose (a 6 - carbon sugar) is broken down into two molecules of pyruvic acid (a 3 - carbon compound). Removing hydrogen from water is not part of glycolysis, and carbon dioxide is produced in later stages like the Krebs cycle, not glycolysis.

Answer:

Glucose is split into two molecules of pyruvic acid.