stoppy123 (Offline)

It was very helpful, very detailed yet all relevant, not like some guides that just baffle on about stuff that is completely irrelevant. I'm getting the unit 2 version too

Thanks so much for reply! I might be retaking the exam so this book is sure to help judging by what you're saying :-). Another reason I asked is so I could get the Unit 2 version

Cheers!

Hi It was given to us by our teachers and I have unfortunately given it back.

This is the book: http://www.amazon.co.uk/AQA-AS-Biolo...pr_product_top

Our school gives them us for free, but it was worth it, had example answers in the back, went through that unit in detail.

Hello,

A few weeks ago, you provided some excellent information in one of your posts on the "AQA Biology Unit 1 January 11th 2012"

"Humoral response -

Phagocytes digest antigens and present part of the antigen on their plasma membrane
B-cells also bind to the antigens using their complementary antibodies
T-helper cells then bind with the antigen presenting cell, and release interleukins,
These interluekins stimulate B-cells to divide and differentiate into B-Plasma cells and B-memory cells
The B-memory cells remain in the lymph nodes for future encounters with the antigen
The B-plasma cells produce antibodies that assist in destroying the antigens.
Antibodies work in several ways: They can agglunate the antigens, making them easier for the phagocytes to digest, they can assist with phagocytosis and they can neutralising toxins produced by the pathogen,

Cellular response

Phagocytes digest viral antigens and present part of the viral antigen on their plasma membrane
Body cells also infected by the virus also present part of the antigen on their plasma membrane
T-helper cells then bind with these antigens on the plasma membrane and release interleukins, these stimulate T-cells to divide and differentiate.
The T-cells can divide into T-memory cells which remain in the lymph nodes for future encounters or T-cytotoxin cels which release perforins which destroy infected cells

the book we got given written by the examiners at AQA helped a BUNCH with that. "

Quick question - I'm just wandering if you could tell me the name of that book you were referring too please? It sounds fantastic lol.