Class 7 Science
Nutrition in Animals
Question 1.
The breakdown of complex components of food into simpler substances is called _________.
Question 2.
Which of the following creature pops out its stomach through its mouth to eat the soft animal inside the shell?
a. Starfish
b. Sea horse
c. Whale
d. Dolphins
Question 3.
Which of the following is not a part of the alimentary canal?
a. Buccal cavity
b. Oesophagus
c. Stomach
d. Urinary tract
Question 4.
Name the glands that secrete digestive juices.
Question 5.
What is the function of the digestive juices?
Question 6.
The process of taking food into the body is called __________.
Question 7.
How many types of teeth do we have?
a. 2
b. 4
c. 3
d. 6
Question 8.
The saliva breaks down the starch into _________.
Question 9.
The inner lining of the stomach secretes ______, ________ and ________ juices.
Question 10.
Which of the following protects the lining of the stomach?
a. digestive juices
b. mucous
c. hydrochloric acid
d. None of the above
Question 11.
What is the function of the hydrochloric acid released in the stomach?
Question 12.
Which of the following releases bile juice?
a. Liver
b. Stomach
c. Oesophagus
d. Small intestine
Question 13.
Complete the given blank spaces by choosing the correct option.
The ________ is a large cream coloured gland located just below the stomach. The ________ juice released from it acts on carbohydrates, fats and proteins and changes them into simpler forms.
a. Liver, bile
b. Pancreas, pancreatic
c. Stomach, hydrochloric acid
d. None of the above
Question 14.
The bile plays an important role in the digestion of ________.
Question 15.
Name the simpler forms of the following when they react with the intestinal juices secreted by the small intestine.
a. Carbohydrate
b. Fats
c. Proteins
Question 16.
Match the following.
Absorption |
The food stored in rumen gets partially digested and called cud which later on returns to the mouth and is chewed by the animal. |
Assimilation |
The removal of faecal matter is through the anus from time-to-time. |
Egestion |
The digested food can now pass into the blood vessels in the wall of the intestine. |
Rumination |
In the small intestine the absorbed substances are transported via the blood vessels to different organs of the body where they are used to build complex substances such as the proteins. |
Question 17.
Complete the given blank spaces.
Animals like _______, ________ have a large sac-like structure called ________ between the oesophagus and the small intestine. The ________ of the food is digested here by the action of certain bacteria which are not present in humans.
Question 18.
Which of the following parts of Amoeba helps it to capture food?
a. Vacuoles
b. Cytoplasm
c. Cell membrane
d. Pseudopodia
Question 19.
The undigested residue of the food is expelled outside by the ________.
Question 20.
The inner walls of the small intestine have thousands of finger-like outgrowths and are called ________.
**********
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All About Daily Practice Problems on Class 7 Science Nutrition in Animals NCERT Chapter 2
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