Identify the incorrect statement.

Five oxygen atoms are required for complete oxidation of pyruvic acid.

Pyruvic acid is the end product of glycolysis.

The proteins would be hydrolysed by amylases and the individual amino acids depending on their structure would enter the pathway at some stage within the Krebs’ cycle or even as pyruvate or acetyl CoA.

Aerobic respiration of a molecule of glucose considered more efficient than anaerobic respiration because more ATP is produced.