Question

Which of the following best represents the enzyme composition of pancreatic juice ?
A. Amylase, peptidase, trypsinogen, rennin
B. Lipase, amylase, trypsinogen, peptidase
C. Lipase, amylase, pepsin, maltase
D. Peptidase, amylase, pepsin, rennin

Answer 1

The major components of food are carbohydrates, protein and fats . These biomolecules in food cannot be utilised by the body in their original form. They have to be broken down and converted into simple substances in the digestive system with the help of enzymes.

Complete Answer:
- Food is one of the basic requirements of all living organisms. The process of conversion of complex food substances to simple absorbable forms is called digestion.
- The pancreatic juice contains inactive enzymes such as trypsinogen, amylase, and lipase. The following juices are secreted by the pancreas.
- Trypsinogen is activated by enzyme enterokinase secreted by the intestinal mucosa into active tips which in turn activates the other enzymes in the pancreatic juice, which are used in protein digestion.
- Lipase is used in the digestion of fats. And the enzyme amylase is used for the digestion of carbohydrates.
- The following enzymes are secreted by the pancreas. Pancreas is a compound that means both exocrine and endocrine glands of the body. It is an elongated organ situated between the limbs of the c-shaped duodenum. The exocrine portion secretes an alkaline pancreatic juice containing enzymes in the endocrine portion secretes hormones, insulin and glucagon.

So the correct answer is (B).

Note: Renin is secreted by the gastric glands which is present in the mucosa of the stomach. Pepsinogen is a proenzyme secreted by the gastric glands it is activated by pepsin.