1
Q
5 classes of antibody:
A
IgG IgA IgM IgD IgE
2
Q
Lymphocytes –
A
the antigen-specific cells of the immune system
they proliferate in response to antigen
3
Q
T lymphocytes (T-cells):
A
Help, regulate or kill
4
Q
B lymphocytes (B-cells):
A
Produce antibody (Ab) molecules
5
Q
The antigen receptors on lymphocytes: B cell
A
The BCR (antibody) on B cells directly recognises native antigen
6
Q
The antigen receptors on lymphocytes: Tc cell
A
The TCR on cytotoxic T cells recognises processed antigen presented by MHC class I
7
Q
The antigen receptors on lymphocytes: Th cells
A
The TCR on helper T cells recognises processed antigen presented by MHC class II
8
Q
Summary
A
- Antigen drives the immune response
- Adaptive responses involve proliferation of antigen-specific cells
- Cytokines aid in communication between cells
- Regulatory T-cells limit harmful immune responses
