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.
Biology C3.2.1
C3.2.1 Pathogens as the cause of infectious diseases
Biology C3.2.2
C3.2.2 Skin and mucous membranes as a primary defence
Biology C3.2.3
C3.2.3 Sealing of cuts in skin by blood clotting
Biology C3.2.4
C3.2.4 Differences between the innate immune system and the adaptive immune system
Biology C3.2.5
C3.2.5 Infection control by phagocytes
Biology C3.2.6
C3.2.6 Lymphocytes as cells in the adaptive immune system that cooperate to produce antibodies
Biology C3.2.7
C3.2.7 Antigens as recognition molecules that trigger antibody production
Biology C3.2.8
C3.2.8 Activation of B-lymphocytes by helper T-lymphocytes
Biology C3.2.9
C3.2.9 Multiplication of activated B-lymphocytes
Biology C3.2.10
C3.2.10 Immunity as a consequence of retaining memory cells
Biology C3.2.11
C3.2.11 Transmission of HIV in body fluids
Biology C3.2.12
C3.2.12 Infection of lymphocytes by HIV with AIDS as a consequence
Biology C3.2.13
C3.2.13 Antibiotics
Biology C3.2.14
C3.2.14 Evolution of resistance to several antibiotics
Biology C3.2.15
C3.2.15 Zoonoses
Biology C3.2.16
C3.2.16 Vaccines and immunization
Biology C3.2.17
C3.2.17 Herd immunity and the prevention of epidemics
Biology C3.2.18
C3.2.18 Evaluation of data related to the COVID-19 pandemic