When oxygen is missing, or when pyruvate is briefly produced more rapidly than it could be consumed via the citric acid cycle (as in intensive muscular exertion), pyruvate is converted to lactate because of the enzyme lactate dehydrogenase, a procedure that also oxidizes NADH back to NAD+ for re-use in https://caidenvemmn.blog2learn.com/76982644/the-best-side-of-renew-benefits