ZIMSEC O-Level Biology
8.6.6Immunity
Immunity in ZIMSEC O-Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic22 practice questions1 lesson
Overview
Form 3.
Learning objectives
What the syllabus expects you to be able to do.
- 8.6.6.1Explain how the body defends itself against infection (skin, tears, blood clotting, white blood cells engulfing pathogens and making antibodies).
- 8.6.6.2Describe natural and artificial active immunity (infection, vaccination) and natural and artificial passive immunity (antibodies from the mother, antiserum injections), and discuss the importance of immunisation.
- 8.6.6.3Analyse the effects of HIV on the body's immune system.
Lessons
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Immunity and vaccination
24 min
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Sample question
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