The second and third line of defence
Gap-fill exercise
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The body has many
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
to stop microbes getting in.
But sometimes pathogens do get past this first line of
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
.
Once inside the microbes have to be
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
The
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
blood cells do this.
There are
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
types of white blood cell that destroy microbes.
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
are cells which travel round the body and ingest (eat) the pathogens
The pathogens are also called
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
.
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
are cells which recognise what type of pathogen is attacking the body.
They make special chemicals called
antibodies
antigens
barriers
defence
destroyed
Lymphocytes
Phagocytes
two
white
which stick to the antigen so that the phagocytes can then eat them.
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