Class 7th Science - Nutrition in animals. Chapter-2 (SA & FA)

Science Assignment (Based on FA & SA) - VII CLASS

 

Class 7th Science Assignment FA & SA

Ques-1. Name four type of teeth? Also, write the number of teeth in each type?

Ans. Four type of teeth are: -

1. Incisor- There are 8 Incisor

2. Canine- There are 4 Canine

3. Premolar- There are 8 Premolar

4. Molar- There are 12 Molar

Total number of teeth are 32 (i.e., 8 + 4 + 8 + 12 = 32).

Ques-2. Right function of following: -

A) Large Intestine

B) Liver 

C) Small Intestine

Ans. The following organ performs function like-

A) Large Intestine - It absorbs water and some salt from undigested food.

B) Liver - It secretes bile juices which help in digestion of fat, carbohydrate and protein.

C) Small Intestine - The process of digestion complete here, the villi present in small intestine increase the area for absorption of digested food.

Ques-3. What type of food or nutrient is digested by bile juices?

Ans. Carbohydrate, fat and protein are digested by bile juices and change into a simpler form.

Ques-4. Name the carbohydrate which is digested by only Ruminants?

Ans. Cellulose.

Ques-5. What is curd?

Ans. Ruminants swallow the grass and store it in a part of stomach cold rumen and food get partially digested cold curd.

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Ques-6. Which is the largest gland in our body?

Ans. Liver. 

Ques-7. Name the organ where protein digestion starts?

Ans. Stomach.

Ques-8. Why do organisms need to take food?

Ans. Organisms need to take food because of the following three reasons:

1. Energy 

2. Growth 

3. Repair Breakage 

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