oak12
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Hi,

I am the Head of A-Level Biology at Birmingham Tuition Centre

I have put together revision notes for A-Level Biology

In this thread are the notes for AQA Unit 1 - I have another thread for OCR Unit 1

The Unit 4 notes for both will be uploaded later this week (Unit 2 and Unit 5 will be uploaded later in the term)

I hope you find the notes useful

Any questions then use this thread or PM me

For now, oak12
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oak12
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AQA A2 Biology Unit 4 Revision Notes have now been uploaded in a different thread
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faggstagram
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amazing, thank you !!
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lol4uuuuu
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do you have the unit 2 notes
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tay22
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Thankyouu!


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candykissesxox
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where are unit 2?
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Flask
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Can someone help with immunity!!!!!!

So i understand phagocytosis

And I know humoral immunity is when the pathogens have not yet entered the cell, and all the stuff with helper T cells activating them and causing mitosis to form plasma cells and memory cells.

But with cell mediated response, does it go back to the phagocyte/macrophage in phagocytosis that has the mhc proteins on its surface, the helper T cells bind to these mhc proteins with its complementary binding site, but then it says the T cells divide by mitosis (clonal expansion) into the t killer cells and whatever. But where does the B cell come in to this, like from the image I've got it just appear on the activated T cell from no where?
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Also what's the difference of the memory cells that form from humoral immunity to the memory B cells that form with cell mediated? Am v confused 😥
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