Q. Pyruvate $\rightarrow C_{2}H_{3}OH + CO_{2}$ The above reaction needs two enzymes named as
A) Pyruvate decarboxylase and alcohol dehydrogenase
B) Pyruvate decarboxylase and enolase
C) Pyruvate decarboxylase and pyruvate kinase
D) Pyruvate carboxylase and aldolase
Explanation
During fermentation, the pyruvic acid releases one molecule of $CO_{2}$ to produce acetaldehyde. The acetaldehyde, then reoxidises NADH and is itself reduced to ethanol. These reactions are catalysed by the enzyme, pyruvic acid decarboxylase and alcohol dehydrogenase [image:14_image5.emf]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.