Defence mechanisms

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Distinguish between 'self' and 'non-self' material
self refers to the bodys own material while non self refers to material that is foreign to the body
1 of 5
state two differences between specific and non-specific defence mechanisms
a specific mechanism distinguishes between different pathogens but responds more slowly. Non-specific mechanism treats all pathogens in the same way but responds more rapidly
2 of 5
why does it take a while for the body's immune system to control a pathogen
the lymphocytes that will finally control the pathogen need to build up their numbers and this takes time
3 of 5
why is it inaccurate to say the bodys take days to respond to the pathogen
The body responds immediately by recognising the pathogen, the delay is in building up numbers of lymphocytes and therefore controlling the pathogen
4 of 5
define the word immunity
the means by which the body protec
5 of 5

Other cards in this set

Card 2

Front

state two differences between specific and non-specific defence mechanisms

Back

a specific mechanism distinguishes between different pathogens but responds more slowly. Non-specific mechanism treats all pathogens in the same way but responds more rapidly

Card 3

Front

why does it take a while for the body's immune system to control a pathogen

Back

Preview of the front of card 3

Card 4

Front

why is it inaccurate to say the bodys take days to respond to the pathogen

Back

Preview of the front of card 4

Card 5

Front

define the word immunity

Back

Preview of the front of card 5

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