Is the conversion of NADH to NAD+ occurring during the conversion of pyruvate to lactate or the other way around?
Understand the Problem
The question is asking for clarification regarding the biochemical process involving NADH and NAD+, specifically whether NADH is converted to NAD+ during the conversion of pyruvate to lactate or from lactate to pyruvate.
Answer
NADH is converted to NAD+ during the conversion of pyruvate to lactate.
The conversion of NADH to NAD+ occurs during the conversion of pyruvate to lactate.
Answer for screen readers
The conversion of NADH to NAD+ occurs during the conversion of pyruvate to lactate.
More Information
During lactic acid fermentation, pyruvate is reduced to lactate, and in this process, NADH is oxidized to NAD+. This is a key reaction under anaerobic conditions as it regenerates NAD+ needed for glycolysis to continue.
Sources
- Energy story for the fermentation of pyruvate to lactate - bio.libretexts.org
- Problem 10 - vaia.com
- Anaerobic Glycolysis - ncbi.nlm.nih.gov
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