Q. Four respiratory enzymes are given below. Arrange them in increasing order of the carbon number of the substrates on which they act. Enolase Aconitase Fumarase Alcohol Dehydrogenase
A) II, IV, III, I
B) IV, I, II, III
C) I, IV, III, II
D) IV, I, III, II
Explanation
Enolase works on 2-phosphoglyceric acid (3C-compound), Aconitase on citric acid (6C-compound). Fumerase on Fumaric acid (4C-compound) and alcohol dehydrogenase on acetaldehyde (2C-compound). Thus, increasing order of these enzymes based on the carbon number of the substrates on which they act is – IV, I, III, II.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.