Q. With reference to a normal human being, which one of the following statements is not correct?
A) Human saliva is slightly alkaline
B) An adult human may secrete 1 to 1.5 litres of saliva per day
C) Saliva is secreted by six pairs of salivary glands in human beings
D) The salivary enzyme (ptyalin) breaks down cooked starch into maltose
Explanation
There are three pairs of salivary glands in man which secrete saliva into the oral cavity through ducts. About 1000-1500 mL of saliva is secreted per day.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.