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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 6

Identify and Name the Four Type of Teeth Shown Below and Give Their Functions

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प्रश्न

Identify and name the four type of teeth shown below and give their functions

टीपा लिहा
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उत्तर

A — Incisor:
Function -Its major function is biting and cutting of food.
B- Canine:
Function — Its major function is tearing of the food.
C — Pre-molar:
Function — Used for crushing and grinding of food.
D — Molar:
Function — Used for crushing and grinding of food.

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पाठ 4: Digestive System - Review Questions

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Name the enzyme present in human saliva. What type of food material is digested by this enzyme?


When a person eats sugary food, then organisms A present in his mouth act on sugar to produce a substance B. The substance B first dissolves the calcium salts from the top part C of the tooth and then from its middle part D forming holes E. These holes ultimately reach the part F in the lower part of tooth which contains nerves and blood vessels. The substance B irritates the nerve endings inside the tooth causing toothache.
  1. What are (i) organisms A, and (ii) substance B?
  2. What are (i) part C, and (ii) part D, of tooth known as?
  3. By what name are the holes E in the tooth known?
  4. Name the part F of the tooth.
  5. What will happen if organisms A reach part F of the tooth known?

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  1. Small intestine is shorter than large intestine.
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Options :

(i)Both the statements are correct

(ii) Both the statements are wrong

(iii) Statement A is correct, B is wrong

(iv) Statement B is correct, A is wrong 


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