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प्रश्न
Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4, 5 and 6.
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उत्तर
1 → Enamel
2 → Dentine
3 → Pulp
4 → Gum
5 → Crown
6 → Cement
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संबंधित प्रश्न
Water from the undigested food is absorbed mainly in the ______.
Where is the bile produced? Which component of the food does it help to digest?
Name the substances on which the following enzymes act in the human digestive system:
(i) Trypsin
(ii) Amylase
(iii) Pepsin
(iv) Lipase
What will happen if mucus is not secreted by the gastric glands?
How do carbohydrates, fats and proteins get digested in human beings?
Which of the following component of our food is digested by an enzyme which is present in saliva as well as in pancreatic juice?
(a) proteins
(b) fat
(c) minerals
(d) carbohydrate
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 blanks.
Grinding of food is brought about by _______ and ______
Put the following processes in their correct sequence of occurrence during digestion.
peristalsis; tongue pushes the food; grinding and mixing saliva; cutting and tearing of food
Write short answers
What is ingestion?
Complete the following enzymatic reaction.
Fats \[\ce{->[lipase]}\] ___________+__________
State whether the following statements are True or false: Na+ is absorbed in intestine by sodium pump.
Describe the following: Digestion of fat in the intestine
The question has four options. Choose the correct answer:
The vermiform appendix is a constituent of
The question has four options. Choose the correct answer:
Teeth present in the upper molar of human beings are
Name the salivary glands in our mouth?
Write any two functions of digestive system.
Throughout the length of the alimentary canal the layer which shows the presence of goblet cells is ______
Secretions of ____________ lubricate the lumen of the alimentary canal.
Identify the option that indicates the correct enzyme that is secreted in location A, B and C.
