IB Biology Topic C3.2: Defense Against Disease Notes

C3.2.1 Pathogens as the cause of infectious diseases

10 minute read

C3.2.2 Skin and mucous membranes as a primary defence

6 minute read

C3.2.3 Sealing of cuts in skin by blood clotting

6 minute read

C3.2.4 Differences between the innate immune system and the adaptive immune system

6 minute read

C3.2.5 Infection control by phagocytes

8 minute read

C3.2.6 Lymphocytes as cells in the adaptive immune system that cooperate to produce antibodies

6 minute read

C3.2.7 Antigens as recognition molecules that trigger antibody production

5 minute read

C3.2.8 Activation of B-lymphocytes by helper T-lymphocytes

6 minute read

C3.2.9 Multiplication of activated B-lymphocytes

5 minute read

C3.2.10 Immunity as a consequence of retaining memory cells

5 minute read

C3.2.11 Transmission of HIV in body fluids

7 minute read

C3.2.12 Infection of lymphocytes by HIV with AIDS as a consequence

8 minute read

C3.2.13 Antibiotics

5 minute read

C3.2.14 Evolution of resistance to several antibiotics

5 minute read

C3.2.15 Zoonoses

6 minute read

C3.2.16 Vaccines and immunization

5 minute read

C3.2.17 Herd immunity and the prevention of epidemics

5 minute read

C3.2.18 Evaluation of data related to the COVID-19 pandemic

6 minute read