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प्रश्न
Answer in detail.
What happens to the nutrients absorbed in the bloodstream from the small intestine?
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उत्तर
The villi of the small intestine increase the inner surface area for the absorption of digested food. Villi contain blood capillaries, The digested food passes through these blood capillaries and enters the bloodstream. This process is called absorption. All the absorbed nutrients are not required immediately by the body. So they are changed into various forms that can be stored until they are needed. This process is called assimilation.
1. Glucose is converted into glycogen and is stored in the liver. When it is required by the liver glycogen is converted into glucose. Excess of glucose is also converted in to fat and stored in the adipose tissue. Fatty acids either provide energy or are used for the synthesis of fats which is stored under the skin.
2. Amino acids are used for the synthesis of protein. Excess amount of amino acids are converted into urea which is removed by the kidneys.
glucose \[\ce{->[liver]}\] glycogen
Amino acids →Proteins
Amino acids → urea
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संबंधित प्रश्न
Which part of the digestive canal is involved in:
Formation of faeces ______.
Match the items of Column I with suitable items in Column II.
| Column I | Column II | ||
| (a) | Salivary gland | (i) | Bile juice secretion |
| (b) | Stomach | (ii) | Storage of undigested food |
| (c) | Liver | (iii) | Saliva secretion |
| (d) | Rectum | (iv) | Acid release |
| (e) | Small intestine | (v) | Digestion is completed |
| (f) | Large intestine | (vi) | Absorption of water |
| (vii) | Release of faeces |
Explain the process of digestion of food in mouth, stomach and small intestine in human body.
The teeth called canines are a total of four in number on the sides of ______.
Fill in the blanks.
Grinding of food is brought about by _______ and ______
Write true or false for the below statement. Rewrite the false statements correctly.
The process of taking in food is called assimilation
Answer in detail.
Liver does not secrete any enzymes yet it helps indigestion. How?
Digestion of starch begins in the ______.
List the parts of the digestive system.
The complete digestion and absorption of nutrients is done by the small intestine. Which of the following greatly enhances the process of absorbtion?
