Question

Which of this juice is secreted by the Pancreas?
A) Trypsin
B) Pepsin
C) Bile juice
D) Both A and B

Answer 1

Hint: Pancreas is an accessory gland of the digestive system. It is both endocrine and exocrine. The endocrine part secretes insulin which regulates the blood sugar whereas the exocrine part secretes digestive enzymes in the inactive form which gets activated in the small intestine. This enzyme digests proteins.

Complete answer:
The digestive system starts with the mouth, oesophagus, stomach, small intestine, large intestine and ends in the rectum. The digestive enzymes are secreted by the organs which help in the breakdown of food.
- Mouth secretes salivary amylase for a breakdown of starch.
- The stomach secretes pepsinogen which is activated to pepsin by the HCl in the stomach. It helps in the digestion of proteins.
- The small intestine receives digestive juices of the accessory glands like the liver and pancreas.
- Accessory glands: The liver produces bile which is used for the emulsification of the fat. The bile juice is released in the small intestine.
- The pancreas produces trypsinogen which is an inactivated form. It becomes activated in the small intestine. It is used for breaking down proteins. The other enzymes present in the pancreatic juice are chymotrypsin, lipase, nuclease, amylase.
- Large intestine- reabsorption of water and other nutrients take place.

As the pancreatic juice contains trypsin, the correct answer is A.

Note: The enzymes break the complex nutrients into forms that can be easily assimilated by our body. The trypsin, pepsin is the proteolytic enzymes which break down proteins into amino acid and nucleotides. The amylases help in the breakdown of the carbohydrates into a simple form. The lipases break down fat into fatty acids and glycerol.