Fumaric acid HOOC-CH = CH-COOH turns into malic HOOC-CHOH-CH2-COOH in the process of metabolism in living organisms at one of the stages in the tricarboxylic acids cycle (Krebs cycle) Give the name of fumaric and malic acid according to the systematic nomenclature:


< But-2-enedioic acid, 2-hydroxybutanedioic acid
<2 carboxy and 1 hydroxy grp
<fumerate and mellate

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