Neet Solved Paper 2013 Question 23

Question: Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?

Options:

A) Glucose-6-phosphate

B) Fructose 1, 6-bisphosphate

C) Pyruvic acid

D) Acetyl Co-A

Show Answer

Answer:

Correct Answer: D

Solution:

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. Glucose-6-phosphate then converts into fructose 6 phosphate and further to fructose 1-6-bisphosphate. Pyruvic acid is the end product of glycolysis.