Powerpoint on specific immune responses

Animated Powerpoint presentation to support a lesson on 4.1.1 phagocytosis, clonal selection and clonal expansion of B and T cells. I have prepared these in outline and more notes can be added as needed. I have provided a link to one of my videos to revise the steps of phagocytosis. The animated slides show how helper T cells are activated and undergo clonal expansion. I then show how B cells undergo activation and clonal expansion. I also show the same process for killer T cells and show a link to one of my videos which clarifies the distinction between the process of activation of helper and killer T cells (this last bit is slightly beyond A level but this extra bit of detail may help clarify some confusion arising from textbook over-simplification).