Botany - Respiration in Plants Question with Solution | TestHub

At the end of glycolysis, 2 molecules of pyruvic acid are formed in the cytoplasm. The 2 molecules of pyruvic acid enters mitochondria to undergo oxidative decarboxylation to form acetyl fraction (2C) in the presence of enzyme pyruvate dehydrogenase and${\mathrm{M}\mathrm{g}}^{2+}$as co-factor. 2 molecules of acetyl fraction (2C) combine with 2 molecules of coenzyme A to form 2 molecules of acetyl coenzyme A (2C). The two molecules of hydrogen released during this reaction are accepted by 2 molecules of coenzyme${\mathrm{N}\mathrm{A}\mathrm{D}}^{+}$and it is reduced to form 2 molecules of NADH +${\mathrm{H}}^{+}.$