Ptyalin is an enzyme of

The enzyme $Trypsinogen$ is a component of:

Amount of saliva secreted daily in humans is

The largest gland of the human body is........

Correct the statement given below by choosing the right option shown in the bracket:
Renin is a proteolytic enzyme found in gastric juice in (infants/adults).

The antibacterial enzyme present in the saliva that prevents infections is