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They have a variable region with antigen binding site so can cause agglutination of antigns/pathogens or may result in opsonisation or act as antitoxinsMstudent
Can antibodies DIRECTLY kill or destroy pathogens?
It moves from P - down to apex - then moves bottom up through purkyne tissuesAccording to mark scheme, the impulses first reach the apex of the heart and then through the purkyne tissues...then what about those tissues which are above the apex?
They have a variable region with antigen binding site so can cause agglutination of antigns/pathogens or may result in opsonisation or act as antitoxins
A*****
No they can't directly or by themselves. But they can neutralize toxins, or can cause clumping of bacteria or viruses so immobilizing them making it easier for *macrophages* to destroy them
yh i kind of amSo is everyone prepared for the Paper 4 exam?
yh i kind of am
tho wut r u doing today?
just revision or past papers or wut?
oohhhh i guess i should do that too thenBoth
yh ive done itWhat an exam I tell you! Has anyone here not done it yet?
yh true thatThe usual. Questions were in the same style as every paper, after 2016, out there.
we were supposed to write about etc right?yh true that
tho i did lose 2 marks in one question lol (wrote abt glycolysis in the one abt cancer cells using up an amino acid to make a 5C compoud *sigh*)
but the rest went well
4what did you draw for the autosomal cross like how many boxes
yh truewe were supposed to write about etc right?
i did like 4x4(so like 16 boxes in total) because werent there like 4 alleles each like FG fg fG and Fg as they were the offspring of F1 generation4
wbu?
yh true
They said (considering there is no crossing over)i did like 4x4(so like 16 boxes in total) because werent there like 4 alleles each like FG fg fG and Fg as they were the offspring of F1 generation
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