Question

Nutrition process, gland and digestive juices​

Answer 1

Answer

The pancreas produces a juice containing several enzymes that break down carbohydrates, fats, and proteins in food. The pancreas delivers digestive juice to the small intestine through small tubes called ducts.

Answer 2

Nutrition is defined as the process by which an organism obtains and uses food.

Step by step explanation:

• Digestion comprises of 5 stages:

1) Ingestion: Digestion begins with ingestion where food is consumed and is chewed or masticated by the teeth.

2) Digestion: This stage primarily occurs in the stomach, here the food undergoes chemical and mechanical contractions which leads to the digestion of the food.

3) Absorption: The primary site for absorption is the small intestine, where the food is chemically transformed into bolus entity under the chemical influence of enzymes.

The food is then traversed into the large intestine, that primarily comprises of the undigested materials and water.

4) Assimilation: The undigested food is collected and is prepared for excretion.

5) Egestion: The undigested food is finally excreted through the rectum.

• The predominant digestive glands are: the salivary glands, pancreas, liver, gastric glands and the intestinal glands. Among these the salivary glands, the pancreas and the liver play an important role in the process of digestion.
• The important enzymes involved in the process of digestion are:

a) Amylase produced in the mouth , it helps in the breakdown of starch molecules into smaller sugar entities.

b) Pepsin: it is produced in the stomach helps in the mechanical breakdown and the churning of food.

c) Trypsin, pancreatic lipase, deoxyribonuclease and ribonuclease produced in the pancreas aids in the process of digestion.