Fermentation Knowledge-Based Download PDF

Questions

1. 1.

   What is the primary metabolic role of the reactions that convert pyruvate into lactate or ethanol during fermentation?

   • A) To regenerate $NAD^+$ from $NADH$ so that glycolysis can continue producing ATP
   • B) To synthesize additional ATP molecules directly through substrate-level phosphorylation
   • C) To prepare pyruvate for entry into the citric acid cycle under anaerobic conditions
   • D) To generate a transmembrane proton gradient that powers ATP synthase