Question
Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?
Glucose-6-phosphate
Fructose 1, 6-bisphosphate
Pyruvic acid
Acetyl Co-A
Solution
D.
Acetyl Co-A
Acetyl Co-A is common to respiration mediated breakdown of fats, carbohydrates and proteins.
Glucose and fructose are phosphorylated to give rise to glucose 6-phosphate by the activity of the enzyme hexokinase. It then converts into fructose 6 phosphate and further to fructose 1-6-bisphosphate. Pyruvic acid is the end product of glycolysis.
