‹ Biology simulationsBiology · AS Level 9700 · 11 ImmunitySeven 3D simulations covering Topic 11.1 The immune system and 11.2 Antibodies and vaccination. Watch a phagocyte at work, sort self from non-self, step through the primary response, compare it with the secondary response, take an antibody apart, make monoclonal antibodies and vaccinate a community.
Neutrophils and macrophages engulf and digest pathogens: an immediate, non-specific response. Release a phagocyte near some bacteria.
Antigens are molecules, usually proteins or glycoproteins, on cell surfaces that can trigger an immune response. Click the cells to see whose antigens they carry.
Only the lymphocytes with receptors complementary to the antigen are selected, then they divide into clones. Step through the response.
Memory cells stay in the blood after an infection. Meet the same pathogen again and compare the two responses.
An antibody is a protein made of four polypeptide chains. Click its parts, then watch how antibodies act on pathogens.
The hybridoma method makes large amounts of one type of antibody. Step through it, then see how monoclonal antibodies are used.
Immunity can be active or passive, natural or artificial. Vaccines give active immunity; vaccinating enough people protects the whole community.
Seven interactive 3D simulations for Cambridge AS Level Biology 9700 topic 11 Immunity: phagocytosis by neutrophils and macrophages, self and non-self antigens, the primary immune response with antigen presentation, clonal selection and expansion, T-helper, T-killer and B-lymphocytes and plasma cells, memory cells and the secondary response, antibody structure with agglutination, neutralisation and opsonisation, the hybridoma method for monoclonal antibodies in diagnosis and treatment, and active, passive, natural and artificial immunity with herd immunity from vaccination.
Seven 3D simulations covering Topic 11.1 The immune system and 11.2 Antibodies and vaccination. Watch a phagocyte at work, sort self from non-self, step through the primary response, compare it with the secondary response, take an antibody apart, make monoclonal antibodies and vaccinate a community.
Immunity is a free, browser-based simulation for Cambridge International AS & A Level Biology 9700 (topic 11 Immunity). The course is assessed in Paper 1 (Multiple choice), Paper 2 (AS structured), Paper 3 (Advanced practical), Paper 4 (A Level structured), Paper 5 (Planning, analysis, evaluation). Syllabus for examination in 2025-2027. There are 7 tabs, each a self-contained experiment with its own controls and live readings, and nothing to install: it runs on a laptop, tablet or classroom projector.
Full syllabus map: AS Level Biology 9700 topic 11.
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