Thursday, 25 February 2021

CBSE Class 7 Science - MCQ and Online Tests - Unit 2 - Nutrition in Animals

CBSE Class 7 Science – MCQ and Online Tests – Unit 2 – Nutrition in Animals


Every year CBSE students attend Annual Assessment exams for 6,7,8,9,11th standards. These exams are very competitive to all the students. So our website provides online tests for all the 6,7,8,9,11th standards’ subjects. These tests are also very effective and useful for those who preparing for any competitive exams like Olympiad etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.

These online tests are based on latest CBSE syllabus. While attempting these, our students can identify their weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly

CBSE Class 7 Science – MCQ and Online Tests – Unit 2 – Nutrition in Animals

Choose the correct answer:

Question 1.
Given below from (i) to (iv) are some food items.
(i) Boiled and mashed potato
(ii) Glucose solution
(iii) A slice of bread
(iv) Mustard oil
Which of the above will give blue-black colour when tested with iodine?
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (iii) and (iv)


Answer: (b) (i) and (iii)

Question 2.
The false feet of Amoeba are used for:
(a) movement only
(b) capture of food only
(c) capture of food and movement
(d) exchange of gases only


Answer: (c) capture of food and movement

Question 3.
Read the following statements with reference to the villi of small intestine.
(i) They have very thin walls.
(ii) They have a network of thin and small blood vessels close to the surface.
(iii) They have small pores through which food can easily pass.
(iv) They are finger-like projections.
Identify those statements which enable the villi to absorb digested food.
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (iii) and (iv)
(d) (i) and (iv)


Answer: (a) (i), (ii) and (iv)

Question 4.
Bile is produced in
(a) Gall bladder
(b) Blood
(c) Liver
(d) Spleen


Answer: (c) Liver

Question 5.
The finger-like outgrowths of Amoeba helps to ingest food. However, the finger-like outgrowths of human intestine helps to:
(a) digest the fatty food substances
(b) make the food soluble
(c) absorb the digested food
(d) absorb the undigested food


Answer: (c) absorb the digested food

Question 6.
The main function of the lacteals of intestine is the absorption of
(a) amino acids
(b) glucose and vitamins
(c) lactic acid
(d) fatty acids and glycerol


Answer: (d) fatty acids and glycerol

Question 7.
Gastric digestion takes place efficiently in
(a) acidic medium
(b) alkaline medium
(c) neutral medium
(d) highly alkaline medium


Answer: (a) acidic medium

Question 8.
Which is not digested by human?
(a) Protein
(b) Fats
(c) Glucose
(d) Cellulose


Answer: (d) Cellulose

Question 9.
How many premolars teeth found in mouth?
(a) 2
(b) 4
(c) 6
(d) 8


Answer: (b) 4

Question 10.
The acid present in the stomach:
(a) kills the harmful bacterial that may enter along with the food.
(b) protects the stomach lining from harmful substances.
(c) digests starch into simpler sugars.
(d) makes the medium alkaline.


Answer: (c) digests starch into simpler sugars.

Question 11.
The enzymes predsent in the saliva convert:
(a) fats into fatty acids and glycerol
(b) starch into simple sugars
(c) proteins into amino acids
(d) complex sugars into simple sugars


Answer: (b) starch into simple sugars

Question 12.
Which of the following pair of teeth differ in structure but are similar in function?
(a) canines and incisors
(b) molars and premolars
(c) incisors and molars
(d) premolars and canines


Answer: (a) canines and incisors

Question 13.
Read carefully the terms given below. Which of the following set is the correct combination of organs that do not carry out any digestive functions?
(a) Oesophagus, Large Intestine, Rectum
(b) Buccal Cavity, Oesophagus, Rectum
(c) Buccal Cavity, Oesophagus, Large Intestine
(d) Small Intestine, Large Intestine, Rectum


Answer: (a) Oesophagus, Large Intestine, Rectum

Question 14.
The swallowed food moves downwards in the alimentary canal because of:
(a) force provided by the muscular tongue.
(b) the flow of water taken with the food.
(c) gravitational pull.
(d) the contraction of muscles in the wall of food pipe.


Answer: (a) force provided by the muscular tongue.

Question 15.
Cud is the name given to the food of ruminants which is:
(?) swallowed and undigested.
(b) swallowed and partially digested.
(c) properly chewed and partially digested.
(d) properly chewed and completely digested.


Answer: (b) swallowed and partially digested.



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