Which of the following statements is/are wrong? (a) In aerobic respiration, the pyruvic acid formed during glycolysis is oxidised to acetyl CoA. (b) In anaerobic respiration, the pyruvic acid formed during glycolysis is reduced. (c) During Kreb's cycle, Succlnyl CoA is converted to succinic acid by succinic dehy drogenase.

Statement (c) is incorrect because Succinyl CoA is converted to succinic acid by succinyl CoA synthetase (or succinic thiokinase), not succinic dehydrogenase. Succinic dehydrogenase converts succinic acid to fumarate. Statements (a) and (b) are correct: pyruvate is oxidized to acetyl CoA in aerobic conditions and reduced in anaerobic conditions (fermentation).