New answers tagged

0

Correct, vitamin C (ascorbate) acts by donating 1 electron to a free radical (reducing them to a stable compound with paired electrons), and is thereby itself oxidized to semidehydroascorbate. This is actually a radical itself, but can be reduced back to ascorbate by thioredoxin reductase or cytochromes, using NADH or NADPH as the reducing agent. A pathway ...


2

Generally speaking, bulk essential nutrients (e.g. amino acids, fatty acids) are used stoichiometrically to form macro cellular structures and are 'baked in' to the structures or compounds they are used to make. Once those structures are destined for degradation, sometimes the bulk essential nutrients can be recovered and reused in the synthesis of other ...


0

It's just naming convention. We recognize, officially, the 13 vitamins based on activity, but we intentionally classify amino acids, etc. as such instead of as vitamins. It's just one of those things that people stick to so that it's standard, such as beverages as a blanket term for certain drinks but not for every type of fluid. (maybe that's a bad example, ...



Top 50 recent answers are included