Questions and answers
Class 7, Chapter 2 - Nutrition in Animals | NCERT
All questions and answers from this set. How animals get their food? Different ways of taking food by animals, digestion in humans, digestion in gross eating animals. Feeding and digestion in amoeba. Science class 7 chapter 2 exercise test and solutions.
Questions: 21
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Question 1
What is digestion?
Breakdown of complex components into simpler substances
Question 2
What is another name of foodpipe?
oesophagus
Question 3
Which statements are true?
Each tooth is rooted in a separate socket in the gums.
True
The process of taking food into the body is called ingestion.
False
Tooth decay is caused by viruses.
False
Question 4
How often you should brush your teeth?
at least twice a day
Question 5
Carries air from nostrils to the lungs. What is it?
windpipe
Question 6
What is the widest part of alimentary canal?
stomach
Question 7
Put in order elements of human digestive system starting from mouth.
1
buccal cavity
2
oesophagus
3
stomach
4
small intestine
5
large intestine
6
rectum
7
anus
Question 8
Match color with teeth name.
Yellow
Incisor
Blue
Canine
Orange
Premolar
Green
Molar
Question 9
At what age milk teeth usually fall off?
Between
six
to eight
years.Question 10
What is the function of saliva?
It breaks down the
starch
into sugars
.Question 11
Which elements of digestive tract secrete digestive juices?
inner walls of stomach
small intestine
salicary glands
liver
pancreas
Question 12
What acid is present in stomach?
hydrochloric acid
Question 13
Stomach digests only:
proteins
Question 14
Which statements are true?
Bile juice helps in digestion of fats.
True
The pancreatic juice can digest sugars, fats and proteins.
True
Villi are finger-like outgrowths of large intestine.
False
Question 15
What's the name of an organ in grass-eating animals and what is its role?
It is called
Caecum
and it helps those animals digest cellulose
.