Question

The process of cell respiration is an amphibolic process or involves both catabolism and anabolism. Choose the intermediate of glucose oxidation, also results in synthesis of glycerol:-

• A. Phosphoglyceraldehyde
• B. Phosphoglyceric acid
• C. Phosphogluconolactone
• D. Phosphoenol pyruvate

Answer 1

The correct option is A Phosphoglyceraldehyde

Cellular respiration is an amphibolic process as the carbon skeleton (Intermediates of respiration) produced during respiration is used as precursors for biosynthesis of other molecules in the cell.

Glycolysis is also known as oxidative anabolism or catabolic resynthesis, because it links with anabolism of fats and amino acids. An intermediate PGAL (3-phosphoglyceraldehyde) is used for the synthesis of glycerol which later forms fats or lipid.

So, PGAL (3-phosphoglyceraldehyde) is the intermediate of glucose oxidation which also results in synthesis of glycerol.