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What substance is mixed with food in the...

What substance is mixed with food in the mouth during chewing by the teeth ?

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Saliva
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When a person puts food in his mouth, then teeth cut it into small pieces, shew 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 enters the stomach with food. The substance G protects the inside layer fo stomach from the damaging effect of substance F whereas substance H is an 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) D ?

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LAKHMIR SINGH & MANJIT KAUR-NUTRITION IN ANIMALS-EXERCISE
  1. What is the scientific name of the process of 'taking food into the bo...

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  2. What substance is mixed with food in the mouth during chewing by the t...

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  3. Name the process which moves the food forward in the food pipe as well...

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  4. Where is the water from undigested food absorbed in the body?

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  5. Where is the digested food absorbed into the blood?

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  6. What is the other name of food pipe?

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  7. The bacteria present on uncleaned teeth convert the sugar in food into...

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  8. Name the type of teeth which are : for chewing and grinding food.

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  9. Name the type of teeth which are : for piercing and tearing food.

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  10. Name the type of teeth which are : for biting and cutting food.

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  11. What is the name of the set of teeth : which grow in a small baby?

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  12. What is the name of the set of teeth : which grow in a small baby?

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  13. Which teeth in human being are replaced by permanent teeth?

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  14. At what age do the milk teeth fall off in children?

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  15. Which organ helps in getting the taste of food which we eat?

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  16. Which two tastes can be detected by the front part of the tongue?

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  17. Which taste of food can be detected : by the sides of the tongue?

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  18. Which taste of food can be detected : by the back part of the tongue...

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  19. What is the special name of the animal which can chew the cud?

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  20. What type of micro-organisms digest cellulose carbohydrate present in ...

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