Advertisements
Advertisements
Question
Answer in detail.
What is meant by digestion? How does it differ from nutrition?
Advertisements
Solution
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
RELATED QUESTIONS
Carbohydrates are bodybuilding nutrients.
What is the function of enzymes in the human digestive system?
Name the substance on which the following enzymes act in the human digestive system:
Trypsin
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is ______.
Why is there no enzyme to digest vitamins?
The teeth called canines are a total of four in number on the sides of ______.
Name the organ where the juice bile is temporarily stored.
Write true or false for the below statement. Rewrite the false statements correctly.
The removal of faeces through the anus is called excretion.
Name the enzymes secreted by the following: Pancreas
In human beings, when the process of digestion is completed, the (i) proteins, (ii) carbohydrates and (iii) fats are respectively finally converted into ______.
