Advertisements
Advertisements
प्रश्न
Answer in detail.
What is meant by digestion? How does it differ from nutrition?
उत्तर
The process of changing complex food into simple, absorbable form by the action of certain enzymes is called digestion. Many organs are associated with digestion. Digestion is of two types
1) Mechanical digestion
In mechanical digestion, food is broken down in the mouth when we chew it with our teeth.
2) Chemical digestion.
In chemical digestion, the food is digested by the actions of certain enzymes.
Digestion is necessary because the food which is obtained is in complex form and our body is not able to absorb nutrients from it. So it is converted into a simple absorbable form. Nutrition is the process of obtaining and using food by the organisms. It is different in different organisms. Ingestion, digestion, absorption, Assimilation, and egestion are the various steps involved in nutrition.
APPEARS IN
संबंधित प्रश्न
How is thorough chewing of food helpful in digestion?
Fill in the blank.
The human teeth appear in two sets, the first set is called primary which consists of only _______ teeth
State whether the following statement is True or False.
The ducts from the salivary glands open into the duodenum.
Write true or false for the below statement. Rewrite the false statements correctly
Pancreatic juice does not contain any enzyme.
Write true or false for the below statement. Rewrite the false statements correctly.
All the absorbed nutrients are immediately required by the body.
Answer in detail.
What changes occur in food in the mouth?
Mark odd one in the series:
Throughout the length of the alimentary canal the layer which shows the presence of goblet cells is ______
In which part of the alimentary canal food is finally digested?
What is a vermiform appendix?
