Botany - Respiration in Plants Question with Solution | TestHub

In lactic acid fermentation,${\mathrm{C}\mathrm{O}}_2$is not released, as there is no step of decarboxylation unlike alcohol fermentation. The alcohol fermentation includes the decarboxylation of pyruvic acid to Acetaldehyde, which is further reduced to ethanol due to the reducing agent NADH (which gets oxidized to NAD⁺. Aerobic respiration (amphibolic pathway) releases CO₂due to oxidative decarboxylation of pyruvic acid to Acetyl-CoA.