Class-5 EVS Chapter-3 From Tasting to Digesting


Chapter- 3
From Tasting to Digesting

Match these foods with their tastes:
Food
Taste
Lemon
Salty
Karela (bitter gourd)
Sour
Laddu
Bitter
Chips
Sweet

Ans-
Food
Taste
Lemon
Sour
Karela (bitter gourd)
Bitter
Laddu
Sweet
Chips
Salty

Fill in the blanks with suitable words:
      (1)    Rashmi has very thin legs and a pot belly because of not getting proper food.
      (2)    Kailsah is fat and flabby because of not eating proper food.
      (3)    Proper food is every child’s right.
      (4)    Digestion begins in the mouth.
      (5)    Dr. Beaumont’s experiments on digestion became famous across the world.

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Answer these questions:
Q. Why was Nitu given glucose drip?
Ans- Nitu’s body had become very weak and it was not keeping any food or water. Doctor aunty gave her the glucose drip so that she can gain some strength quickly, even without eating.

Q. Nitu’s teacher used to tell the girls to have glucose while playing hockey. Why do you think she did this?
Ans- Glucose provides instant energy and a lot of energy is exhausted while playing hockey. Therefore, Nitu’s teacher used to tell girls to have glucose while playing hockey.

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Q. Have you tasted glucose? How does it taste?
Ans- Yes, I have tasted glucose in games period. It is sweet in taste.

Q. What do you understand by proper food?
Ans- Proper food means a nutritious food in sufficient amount as per the need of a person.

Q. Why can you not taste food properly when you have a cold?
Ans- Our sense of smell and taste are interlinked. During cold our nose (nasal passage) is blocked and we do not get the aroma (flavor) of food. Therefore, we can not taste food properly when we have a cold.

Q. If we were to say that “digestion begins in the mouth”, how would you explain this. Write.
Ans- In mouth, our food is mixed with a fluid called saliva. Saliva moistens, softens our food and breaks carbohydrates.  Therefore, digestion of food begins in the mouth.



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