Q3 of 17 Page 20

Fat is completely digested in the

i. stomach


ii. Mouth


iii. Small intestine


iv. Large intestine

The complete digestion of food takes place in the small intestine. The carbohydrates get broken into simple sugars such as glucose, fats into fatty acids and glycerol, and proteins into amino acids.


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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 _____ juices 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 temporarily stores bile.


d. The ruminants bring back swallowed grass into their mouth and chew it for some time.

 3

Water from the undigested food is absorbed mainly in the

i. stomach


ii. Food pipe


iii. Small intestine


iv. Large intestine

 4

Match the items of Columns I with those given in Column II:























Column I



Column II



Food components



Product(s) of digestion



Carbohydrates



Fatty acids and glycerol



Proteins



Sugar



Fats



Amino acids