Final answer:
The molecules produced in glycolysis that are used in fermentation are NADH and pyruvate. During glycolysis, glucose is split into pyruvate, generating NADH, which can then enter fermentation pathways.
Step-by-step explanation:
The molecules produced in glycolysis and used in fermentation are NADH and pyruvate. During glycolysis, glucose is broken down into two molecules of pyruvate, and in this process, NAD+ is reduced to NADH.
This pyruvate and NADH can then enter various types of fermentation pathways. For example, in alcohol fermentation, pyruvate is converted into ethanol and NAD+, while in lactic acid fermentation, pyruvate is converted into lactate, also regenerating NAD+.