AP BIOLOGY

ANIMAL PHYSIOLOGY

DIGESTION IN HUMANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The mouth contains salivary glands which produce
A
polysaccharides
B
amylases
C
proteases
D
lipases
Explanation: 

Detailed explanation-1: -Salivary amylase is a glucose-polymer cleavage enzyme that is produced by the salivary glands. It comprises a small portion of the total amylase excreted, which is mostly made by the pancreas.

Detailed explanation-2: -Parotid glands These are largest of the salivary glands, secreting saliva to facilitate mastication and swallowing, and amylase to begin the digestion of starches. It is the serous type of gland which secretes alpha-amylase (also known as ptyalin).

Detailed explanation-3: -Salivary amylase, encoded by the gene AMY1, is a major component of human saliva that initiates carbohydrate digestion in the mouth. This process continues in the small intestine, where amylase produced by the pancreas performs the final steps of carbohydrate digestion.

Detailed explanation-4: -[13] The greatest S-type amylase activity is in salivary glands, where it initiates the hydrolysis of starches while food is in the mouth and esophagus. Its action is terminated by acid in the stomach.

There is 1 question to complete.