Questions and Answers
Class 7, Chapter 2 - Nutrition in Animals | NCERT
1.
What is digestion?
Breakdown of complex components into simpler substances
2.
What is another name of foodpipe?
oesophagus
3.
How often you should brush your teeth?
at least twice a day
4.
Carries air from nostrils to the lungs. What is it?
windpipe
5.
What is the widest part of alimentary canal?
stomach
Match color with teeth name.
6.
Yellow
Incisor
7.
Blue
Canine
8.
Orange
Premolar
9.
Green
Molar
10.
Which elements of digestive tract secrete digestive juices?
inner walls of stomach, small intestine, salicary glands, liver, pancreas
11.
What acid is present in stomach?
hydrochloric acid
12.
Stomach digests only:
proteins
13.
What is this?
a starfish
14.
How long is large intestine?
about 1,5 metre
15.
In which organ absorption occurs?
small intestine
16.
How do we call process of removing faecal matter through the anus?
egestion
17.
What is the name of a medical condition when one passes watery stool frequently?
diarrhoea
Match columns.
18.
cud
partially digested grass
19.
rumen
part of stomach in grass-eating animals
20.
amoeba
single-celled organism living in water
21.
cellulose
sugar that cannot be digested by most animals
22.
glycerol
a substance formed as a result of the digestion of fats