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Summary

Immunity (A Level) Summary Sheets

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The entire topic immunity (including blood typing and the Rhesus factor) as summary sheets with illustrations and diagrams to aid understanding.

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IMMUNITY ÷÷Y¥÷÷÷÷:÷
$
Monocytes
antibodies
. sauna..



Innate -
@ non -




specific defencewithin hours
play immediately or
mech come into
.




of Innate
§! *
u



monocytes → macrophages
antigen 's appearance ( phagocytosis)
.




@ composed of specialised
cues +

Adaptive eliminate pathogens -1
-




processes that



¥29
+ is
highly
creates immunological memory
to particular pathogen
.




specific

antibody mediated

② Cell mediated
specific Immunity * unmediated T lymphocytes -
-0A bone marrow Cmature
in thymus gland)

① Antibody mediated in cells
( lymph ) mature in nodes * targets antigens already
B- Lymphocytes ⑤
-
bone marrow
> infected cells
cells)
antibodies on it 's (turnout cancer
each unique B cell done carries
specific
antibodies combine with specific antigen IB
surface -



> abnormal self antigens
transplanted foreign tissue antigens
cell
surface
-




when these >

is ACTIVATED ISENSITISED
Hdd stimulus weak ( no memory cells)
÷ into
secretes protein perforin . causes sores
to form



g¥ge{ima }
mitosis
÷ rapidly by ST Killer •
-
.




better if it combines with a macrophage in target cell membrane




Jama
aatnsion
mceeqygty e
G,
8
that has phagocytesed the antigen
1- is an APC

to
> + helper
@ stimulate B an -




immflamation
-




+
differentiation ,



phagocytosis by producing
T-cell :-,



do Hodak 4 cytokines
Eg
antibodies


)
circulate for antigen presenting au
-
. >
T -



suppressor cells
-
o stop BTT responses after infection
garobuindetifahl'id response detects antigen it's
upon re
-

exposure If T -



lymphocyte stmemoryceees
B r T -

helper cells are produced
↳ Thayer cells interact with macrophage APC

* antibodies target free # r release which stimulate
CYTOKINES
antigens B cells to differentiate
-





how antibodies work
menu
-

he Immune System has Memory a
to immune response B cell ( takes time)
antigen o must contact
specific
- -




Ab
specific comrdlimeutaey pathogen forming Ag complex
-




bind to ,

20 immune response -0 Starts as soon as
memory " cells encounter
antigen
① Agglutination → 2nd
↳ 1st exposure
Abaood . more rapid Gnc
'



have 2 binding sites
cross link . antigens forming clumps exposure
> easier to ahagocytose




TYPES of Immunity
> d spread
hero auction otaathogens (pcaantaycoeostral )

transfer
>



nfbnutratirseaaitniosieson antigen
virus binds to host

-
makes it
ineffective caaigiciaeexaosureaniliwa.LI#pqnatural
antigen e'9-
Passive
vaccine ?
Active
e. g. site where # antibodies given ( short term)


1.
# ↳
Hotifinal
¥

( Oppsonisation
make the natural
easier
Abs attach to antigen phagocytes
can
identify them antibodies ( )
,


infection themselves

Blood Groups types g- vaccine
.




plasma
cserumerans )
-
k
clotting factors
.




first 6 months Abd


§§.tl?e!aYed-oweakened'
te" antis' "
"" " ""




"
fqqr-n.fi A " b Already infected
Femininity -
.


¥gYug7yMuimggg÷.us
eyed
cells Ab levels
booster vaccines keep
high
'




memory tetanus
* donors antigen
e -




g. ,
ebdajabs > natwauy denature
Grotius)
recipients
antibody # overtime



B
a - can test
for many conditions
fffgffeeninrema
B pa
Belman amal )
-

antibodies
f•i•
atone .

lmmunosorbant
,
is
a

assay
① mouse infected with particular antigen
plate wells absorbed onto matrix ② B- cells removed
surface of
in each well
g. specific Abs
.

cells (promote rapid :-O
③ hybridise d with cancer
AB Sample
of
added
of body fluid Ags
A as source
-
f universal
IBBY Bi long life)
.




recipient Abr
Ag reactor
triggers enzyme
to cause colour
change identifying Ag
: .




k B
'


as Agon plate ,
vigaatient has Abs these win bind ④ cultured in
made
,
Extracted
fermentedas ramified -




detect pathogens
detect
uses : >
cancer cell markers ⑤ termed monsoonal they're aurel 't tyre
>
markers than trad Frans
⑦ purer
serum
o b a
universal > detect cardiac disease

Houff J donor
pregnancy
tests
be @ rod in large quantities




£
>
④ can
.




2nd


Cytokinefor Detection
specific enzyme
a
Ab with

b b



e e e
attaagengaenwymenanagaysesareaaion immflammation
biomarker


→ Ag areseat in serum or urine used to detect Rheumatoid Arthritis
hormone in blood lurine HCG Abs on ELISA
HCG .




colour
I Btk Atha
Ag binding olinked enzyme change
o
Ab
- - .




plate Monoclonal Abs
-





.

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Uploaded on
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Number of pages
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Written in
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Type
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