Q. Ptyalin is inactivated by a component of gastric juice known as
A) Pepsin
B) Mucus
C) Rennin
D) HCl
Explanation
Saliva contains a starch splitting enzyme ptyalin $(\alpha\ amylase).$ HCl of gastric juice inactivated the ptyalin in stomach.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.