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Immunity, AIDS and Substance Abuse
Biology · Chapter 12 · Unit 3: Biology and Human Welfare
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Your path through this chapter
Visual lesson Beta
Step 1: Not startedFlashcards Beta
30 cards for quick recall of key terms and facts.
Review the cards Step 3: Not startedPractice
62 board-style questions with instant checks: Multiple choice 25, Short answer 18, Assertion and reason 6, Fill in the blanks 4.
Practise Step 4: Not startedChapter test Free
Short and long chapter tests in board pattern, with results and analysis.
Step 5: Not started- Chapter test (long) — Immunity, AIDS and Substance Abuse · 40 marks · 100 min
- Chapter test (short) — Immunity, AIDS and Substance Abuse · 20 marks · 50 min
Topics 5
- Innate immunity: physical, physiological, cellular and cytokine barriers; interferons
- Acquired immunity: active and passive, humoral and cell-mediated; primary and secondary lymphoid organs
- Antibody structure; IgG, IgA, IgM, IgD and IgE (functions and occurrence); vaccination, immunisation and autoimmunity
- AIDS: HIV, transmission, diagnosis by ELISA, symptoms, replication of the retrovirus in a host cell, prevention
- Alcohol, smoking and drugs (opioids, cannabinoids, cocaine, barbiturates): sources, effects, reasons for addiction, prevention and control