Question

multiple choice question

during the first phase of glycolysis:

there is reduction of fad.
atp is produced.
pyruvate is produced.
there is an atp investment.

Explanation:

Analyze the phases of glycolysis

The first phase of glycolysis is the energy investment phase, where 2 ATP molecules are consumed to phosphorylate glucose.

Evaluate the given options

• "there is reduction of FAD": FAD is reduced in the Krebs cycle, not glycolysis.
• "ATP is produced": ATP is produced in the second phase (energy payoff phase).
• "pyruvate is produced": Pyruvate is the final product of glycolysis, formed at the end of the second phase.
• "there is an ATP investment": This occurs during the first phase (preparatory phase) to prime glucose for cleavage.

Answer:

• there is reduction of FAD.
• ATP is produced.
• pyruvate is produced.
• there is an ATP investment. (Correct answer)