Carbon dioxide is NOT released during

Explanation

Glycolysis only rearranges and splits the six carbons of glucose into two three carbon pyruvate molecules, so no carbon is lost as gas. Decarboxylation begins with the link reaction, which removes one carbon per pyruvate, and continues twice more in each turn of the Krebs cycle. Alcoholic fermentation also releases carbon dioxide when pyruvate is converted to ethanal.