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प्रश्न
What is the role of the liver and the pancreas respectively in the digestion of food?
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उत्तर
- Liver: It produces a green-yellow fluid called the bile which emulsifies fats making it easy to be digested. The bile also contains sodium bicarbonate which neutralises the acid of food coming from the stomach and makes it alkaline.
- Pancreas: It produces the digestive juice called the pancreatic juice which acts on carbohydrates, proteins, and fats and convert them into simpler units called glucose, amino acids and fatty acids respectively
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संबंधित प्रश्न
Name any four life processes in living things.
When a person puts food in his mouth, then teeth cut it into small pieces, chew and grind it. The glands A in the mouth secrete a substance B which is mixed with the food by tongue. The substance B contains an enzyme C which starts the digestion of food in the mouth. The slightly digested food from the mouth goes down a tube D. The special type of movements E in the walls of tube D push the food into stomach for further digestion. The stomach wall secretes gastric juice containing three substance F, G and H. One of the functions of F is to kill bacteria which may enter the stomach with food. The substance G protects the inside layer of stomach from the damaging effect of substance F whereas substance H is and enzyme for digestion. The partially digested food then enters into small intestine for further digestion.
(a) What is (i) gland A (ii) substance B, and (iii) enzyme C?
(b) Name the tube D.
(c) What is the movement E known as?
(d) What are (i) F (ii) G, and (iii) H?
How is thorough chewing of food helpful in digestion?
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Kilocalorie
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State whether the following statements are True or false: Pancreatic amylase digests protein into amino acids.
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