AS Biology - Immune response OVERVIEW (OCR A Chapter 12.5-6)
5:47
AS Biology - Non-specific primary defences + Inflammation (OCR A Chapter 12.5)
6:55
AS Biology - T- and B-lymphocytes (OCR A Chapter 12.6)
16:40
AS Biology - Pathogens and transmission (OCR A Chapter 12.1-3)
15:17
Understanding the Immune System in One Video
8:56
Immune System
8:12
AS Biology - Plant defences against pathogens (OCR A Chapter 12.4)
13:46
MHC 1 vs. MHC 2, T-Cell Activation, T-Cell Differentiation
1:06:45