Flashcards
Class 7, Chapter 2 - Nutrition in Animals | NCERT
Flashcards for quick repetition. 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.
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What is digestion?
breakdown of simpler substances into atoms
converting complex components into energy
Breakdown of complex components into simpler substances
converting simpler substances indo complex ones
Breakdown of complex components into simpler substances
What is another name of foodpipe?
oesophagus
Which statements are true?
1. Each tooth is rooted in a separate socket in the gums.
2. The process of taking food into the body is called ingestion.
3. Tooth decay is caused by viruses.
1. Each tooth is rooted in a separate socket in the gums.
How often you should brush your teeth?
at least twice a day
at least thrice a day
at least once a day
Carries air from nostrils to the lungs. What is it?
windpipe
What is the widest part of alimentary canal?
small intestine
oesophagus
stomach
large intestine
Put in order elements of human digestive system starting from mouth.
Match color with teeth name.
At what age milk teeth usually fall off?
Between
. . . . . . . .
to
. . . . . . . .
years.
Between six to eight years.
What is the function of saliva?
It breaks down the
. . . . . . . .
into
. . . . . . . .
.
It breaks down the starch into sugars.
Which elements of digestive tract secrete digestive juices?
pancreas
salicary glands
large intestine
inner walls of oesophagus
small intestine
gall bladder
inner walls of stomach
liver
pancreas
salicary glands
small intestine
inner walls of stomach
liver
What acid is present in stomach?
hydrogen fluoride
bromic acid
hydrochloric acid
sulfuric acid
Which statements are true?
1. Bile juice helps in digestion of fats.
2. The pancreatic juice can digest sugars, fats and proteins.
3. Villi are finger-like outgrowths of large intestine.
1. Bile juice helps in digestion of fats.
2. The pancreatic juice can digest sugars, fats and proteins.
What's the name of an organ in grass-eating animals and what is its role?
It is called
. . . . . . . .
and it helps those animals digest
. . . . . . . .
.
It is called Caecum and it helps those animals digest cellulose.
