Q. Identify enzyme A in the given reaction of Kreb’s cycle $OAA + Acetyl\ Co - A + H_{2}O\ \overset{\ \ \ A\ \ \ }{\rightarrow}$ Citric acid + Co – A

A) Oxaloacetate synthetase
B) Citrate synthetase
C) Aconitase
D) Dehydrogenase
Explanation

The TCA cycle starts with the condensation of acetyl group with oxaloacetic acid (OAA) and water to yield citric acid. The reaction is catalyzed by the enzyme citrate synthase and molecule of Co-A is released

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.