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प्रश्न
Name the organs of the digestive system
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उत्तर
The alimentary canal and associated digestive glands together form the digestive system. The alimentary canal consists of the oesophagus, the stomach, the small intestine and the large intestine. The digestive glands are salivary glands present in the mouth, the liver and the pancreas. The teeth and tongue in the mouth help in food intake.
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संबंधित प्रश्न
What is trypsin? What is its function?
In human digestive system, the enzymes pepsin and trypsin are secreted respectively by:
(a) pancreas and liver
(b) stomach and salivary glands
(c) pancreas and gall bladder
(d) stomach and pancreas
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?
Fill in the blank.
Saliva contains salivary amylase which changes starch to _____.
How do the salivary glands come to know that there is food in the mouth and it is time to secrete saliva?
Why it is important to wear helmet while riding a bike?
The pyloric sphincter guards the passage between the ____________.
The common bile duct and pancreatic form ______.
Name the correct substrates for the following enzymes
- Trypsin
- Amylase
- Pepsin
- Lipase
What are the end products of digestion of starch, proteins, and fats respectively?
