Videos for C3.2 Defense against disease - IB
These comprehensive video lessons help IB Biology students Standard Level (SL) and Higher Level (HL) understand and master the essential concepts needed for success in IB Exams. Each video focuses on C3.2 Defense against disease and is aligned with the IB Biology syllabus, ensuring focused learning on cell biology, genetics, and ecology. Students can watch and rewatch anytime, anywhere, perfect for visual learners, reinforcing complex concepts, and understanding IB methodology. By using RevisionDojo's video lessons consistently, learners build deep understanding and enter the exam with confidence.
2 min
Biology C3.2.1
C3.2.1 Pathogens as the cause of infectious diseases
3 min
Biology C3.2.2
C3.2.2 Skin and mucous membranes as a primary defence
4 min
Biology C3.2.3
C3.2.3 Sealing of cuts in skin by blood clotting
3 min
Biology C3.2.4
C3.2.4 Differences between the innate immune system and the adaptive immune system
3 min
Biology C3.2.5
C3.2.5 Infection control by phagocytes
2 min
Biology C3.2.6
C3.2.6 Lymphocytes as cells in the adaptive immune system that cooperate to produce antibodies
4 min
Biology C3.2.7
C3.2.7 Antigens as recognition molecules that trigger antibody production
3 min
Biology C3.2.8
C3.2.8 Activation of B-lymphocytes by helper T-lymphocytes
2 min
Biology C3.2.9
C3.2.9 Multiplication of activated B-lymphocytes
2 min
Biology C3.2.10
C3.2.10 Immunity as a consequence of retaining memory cells
2 min
Biology C3.2.11
C3.2.11 Transmission of HIV in body fluids
2 min
Biology C3.2.12
C3.2.12 Infection of lymphocytes by HIV with AIDS as a consequence
2 min
Biology C3.2.13
C3.2.13 Antibiotics
2 min
Biology C3.2.14
C3.2.14 Evolution of resistance to several antibiotics
3 min
Biology C3.2.15
C3.2.15 Zoonoses
3 min
Biology C3.2.16
C3.2.16 Vaccines and immunization
2 min
Biology C3.2.17
C3.2.17 Herd immunity and the prevention of epidemics
4 min
Biology C3.2.18
C3.2.18 Evaluation of data related to the COVID-19 pandemic