Human physical and chemical defences (5.12) | Edexcel GCSE Combined Science (1SC0) — Biology — Higher | KnowledgeSet

Human physical and chemical defences

Biology (Combined Science) · GCSE · Edexcel · Edexcel GCSE Combined Science (1SC0) — Biology — Higher · Specification point · 5.12 · Health, disease and the development of medicines

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Students should:	Maths skills
$5.12 Describe how the physical barriers and chemical defences of the human body provide protection from pathogens, including: a physical barriers, including mucus, cilia and skin b chemical defence, including lysozymes and hydrochloric acid$	$5c$