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Outline the body's defenses against pathogens, focusing on: skin, nasal hairs, mucus, stomach acid, and white blood cells.

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Cambridge IGCSE Combined ScienceDiseases and immunityCore content

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Quick explanation

Outline the body's defenses against pathogens, focusing on: skin, nasal hairs, mucus, stomach acid, and white blood cells

  • This point belongs to Diseases and immunity, especially Diseases and immunity outcomes.
  • You need to be able to outline the body's defenses against pathogens, focusing on: skin, nasal hairs, mucus, stomach acid, and white blood cells.
  • The key ideas to know are Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Describe

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Paper 3 structured question: Diseases and immunity

Paper 3Theory (Core)3 marks

Description

Body Defenses

The skin, nasal hairs, mucus, stomach acid, and white blood cells are key components of the body's defense system.

  1. a

    Outline the role of the skin and white blood cells in defending against pathogens.

    Aim for approximately 3 distinct marking points.

    [3]
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