Cambridge IGCSE Combined Science practice

Paper 3 structured question: Diseases and immunity

Try the question first, then check the answer and practise the same topic again.

At a glance

Paper

Marks

Topic

Diseases and immunity

Exam-style question

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Paper 3Theory (Core)3 marks

The human body has various mechanisms to defend against pathogens.

Description

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

a
Outline the role of the skin and white blood cells in defending against pathogens.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 3Theory (Core)2 marks

Description

The skin, nasal hairs, mucus, stomach acid, and white blood cells work together to protect the body from infections.

a
Describe the functions of mucus and stomach acid in pathogen defense.
Your answer
Aim for approximately 2 distinct marking points.
[2]