The Biology of Tuberculosis

The Biology of Tuberculosis Description An advanced Year 13 biology lesson exploring the infection cycle of Mycobacterium tuberculosis, the host immune response, latent and active TB, and the pathogen’s strategies for surviving inside macrophages. Summary Students investigate how TB bacteria enter the lungs, are engulfed by alveolar macrophages and become enclosed within tubercles. They examine why primary infection is often asymptomatic, how latent TB can reactivate, and how M. tuberculosis prevents phagosome–lysosome fusion to evade destruction. The lesson concludes with clinical application, visual analysis and knowledge checks. What you get An engaging introduction to TB as a global health challenge Clear learning objectives and essential vocabulary Visual explanations of infection, phagocytosis and tubercle formation Comparison of latent and active TB An overview video on TB progression A clinical case study with listening questions Detailed coverage of intracellular survival and immune evasion Multiple-choice, true-or-false, image-matching and fill-in-the-blank activities Advanced exam-style questions on TB pathogenesis and host–pathogen interactions