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Module 4
4.1:COMMUNICABLE DISEASES, DISEASE PREVENTION IMMUNE SYSTEM
Recognising non self cells
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Phagocytosis
A LEVEL BIOLOGY > Module 4 > 4.1:COMMUNICABLE DISEASES, DISEASE PREVENTION IMMUNE SYSTEM > Recognising non self cells
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Cards (23)
lymphocytes
are a type of
white blood
cell that identifies non self
cells
once
lymphocytes detects
non
self cells
they trigger a
immune response
lymphocytes
can detect
pathogens toxins
non
self
cells and
abnormal
cells
an
antigen
is a
protein
in the
cell surface membrane
that
triggers
an
immune response
lymphocytes
use
antigens
to
detect
non
self cells
becauase of the range of shapes
protein
can be due to the
tertiary structure proteins
are
good
at
distinguishing cells
lymphocytes detect
non
self cells
based on their
antigenes
all
lymphocytes
have
antigen receptors
on their
surface
and these
receptors
are
complementary
to a
specific antigen
when the
receptor
and
antigen
bind together it activates
lymphocytes
to trigger
immune response
lymphocytes
trigger a
specific immune response
as a
single lymphocytes
has
one type
of
antigen receptor complementary
to a
single antigen
phagocytes
are a type of
white blood
cell that detects non self
cells
phagocytes
are
non specific
to
antigens
and
pathogens
phagocytes
have
receptors complementary
to
molecular patterns
found in
all pathogens
therefore it
trigger
a
non specific immune response
phagocytes
trigger non
specific immune response
as the
recognise
all
pathogens
cytokines are produced by
phagocytes
that have
engulfed
a pathogen they then
attract
other phagocytes to site
opsonins
bind to
antigens
preventing pathogen from repelling
phagocytes
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