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NCERT Exemplar Solutions Class 9 Science Solutions for Why Do We Fall ill ? - Exercise in Chapter 13 - Why Do We Fall ill ?
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Becoming exposed to or infected with an infectious microbe does not necessarily mean developing a noticeable disease. Explain.
Answer:
Our immune system fights disease-causing pathogens and clears them by killing to gives us protection from disease. When we get exposed to certain pathogens our immune system sends active cells that kill and clear the pathogen. Because of the immune system, we don’t often get the disease despite getting exposed to infectious microbes.
Video transcript
"hello everyone welcome to leader
learning
i am gurpreet your science tutor today's
question is
becoming exposed to or infected with an
infectious microbe does not necessarily
mean
developing a noticeable disease so here
a sentence or a statement is given to
you and we have to
explain it so let's start the
explanation
we know that our immune system
our immune system
fights diseases
causing pathogens
and clears them
by killing
to give us
protection
from disease so this is what the work of
our immune system is
when any pathogen
when any pathogen
enters our body
our immune system
our immune system activates
the cells
which kill the
pathogen okay
and because of
our immune system
we do not often get the disease
despite of getting exposed to the
infectious
microbes because whenever we are exposed
to those microbes then our immune system
get
activated it sends the cells which kill
that microbe or the pathogen
which is causing disease for more such
videos
please subscribe leader learning and for
any doubts
drop a comment thank you"
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