NCERT Grade 7-Nutrition in Animals-Questions – MySchoolPage

NCERT Grade 7-Nutrition in Animals-Questions

NCERT Solutions for Class 7 Science

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Nutrition in Animals

1.    Fill in the blanks:

(a) The main steps of digestion in humans are ——–, ———-, ——–, ——- and ——–.

(b) The largest gland in the human body is ——-.

(c) The stomach releases hydrochloric acid and ——— juice which act on food.

(d) The inner wall of the small intestine has many finger-like outgrowths called—-.

(e) Amoeba digests its food in the———

2.    Mark ‘T’ if the statement is true and “F” if it is false.

(a) Digestion of starch starts in the stomach. (T/F)

(b) The tongue helps in mixing food with saliva. (T/F)

(c) The gall bladder temporally stores bile. (T/F)

(d) The ruminants bring back swallowed grass into their mouth and chew it for some (T/F)

3.    Tick ( ) mark the correct answers in each of the following:

(a) Fat is completely digested in the

(i) Stomach                              (ii) mouth

(iii) Small intestine                  (iii) large intestine.

4.    Match the item of Column I with those given in Column II.

Column I                                 Column II

Food components            Product of digestion

Carbohydrates                        Fatty acids and glycerol

Proteins                                    Sugar

Fats                                            Amino Acids


5.    What are villi? What is their location and function?

6.    Where is the bile produced? Which component of the food does it digest?

7.    Name the carbohydrate that can be digested by ruminants but not the human beings.

Give the reason also.

8.    Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also.

9.   Why do we get instant energy from glucose?

10.  Which part of the digestive canal is involved in :

(i) Absorption of food——-

(ii) Chewing of food——–

(iii) Killing of Bacteria——–

(iv) Complete digestion of food————-

(v) Formation of faeces ———–

11.   Write one similarity and one difference between the nutrition in amoeba and human beings.

12.  Match the items of Column I with suitable items in Column II.

Column I                                 Column II

(a) Salivary gland            (i) Bile juice secretion

(b) Stomach                     (ii) Storage of undigested food

(c) Liver                            (iii) Saliva secretion

(d) Rectum                       (iv) Acid release

(e) Small intestine          (v) Digestion is completed

(f) Large intestine           (vi) Absorption of water

     (vii) Release of faeces.

13.  Label fig. 2.2 of the digestive system.

14.  Can we survive only on raw, leafy vegetables/grass? Discuss.

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