Question

12. Identify the option that indicates the correct enzyme that is secreted in location A, B and C. ​

Answer 1

The option that indicates the correct enzyme that is secreted in location A, B and C is B. (i) amylase (ii) pepsin (iii) trypsin

The location shown in the image are as follows:

Location A - Mouth

Location B - Stomach

Location C - Small intestine

Amylase is secreted in the mouth as well as in the pancreas. Salivary glands in the mouth secrete amylase. This enzyme helps in the breakdown of starch into sugar.

Pepsin is a type of protease, which is secreted by the stomach. The breaking down of protein into peptides is facilitated by pepsin.

Trypsin is also a type of protease, but it is secreted by the small intestine. It assists in the breakdown of peptides by activating other pancreating enzymes.

Answer 2

The option that indicates the correct enzyme that is secreted in locations A, B, and C is (i)-amylase, (ii)-pepsin, (iii)-trypsin.

Explanation:

• Trypsin is secreted by the pancreas and helps digest proteins.  

• In the small intestine, trypsin breaks down proteins and continues the digestive process that began in the stomach.  

• Saliva amylase is found in saliva and helps digest starch in foods.  

• Amylase digests starch into smaller molecules, eventually producing maltose. Maltose is been split into two glucose molecules by maltase.  

• Pepsin is secreted by the gastric glands that aids in protein digestion.  

• Pepsin is a stomach enzyme used to digest proteins in foods.