Concept explainers
(a)
Interpretation:
The way in which the conversion of pyruvate to lactate is similar to pyruvate to ethanol conversion needs to be explained.
Concept introduction:
The oxidation of glyceraldehyde 3-phosphate generates NADH resulting net oxidation in the glucose to pyruvate conversion. The oxidation-reduction does not take place in the glucose to lactate conversion. The transfer of electrons from NADH to pyruvate is catalyzed by lactate dehydrogenase to from lactate.
(b)
The ways in which two processes are different needs to be explained.
Concept introduction:
The oxidation of glyceraldehyde 3-phosphate generates NADH resulting net oxidation in the glucose to pyruvate conversion. The oxidation-reduction does not take place in the glucose to lactate conversion. The transfer of electrons from NADH to pyruvate is catalyzed by lactate dehydrogenase to from lactate.

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Chapter 24 Solutions
GENERAL,ORGANIC, & BIOLOGICAL CHEM-ACCES
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