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Cambridge IGCSE Biology practice

Paper 3 structured question: Heart

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Heart

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Paper 3Theory (Core)4 marks

Several factors can increase the risk of developing coronary heart disease.

Description

Risk Factors for Coronary Heart Disease

Risk factors include diet, lack of exercise, stress, smoking, genetic factors, age, and sex.

  1. a

    Identify four risk factors for coronary heart disease.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 3 structured question: Heart

Paper 3Theory (Core)2 marks

Description

Coronary Heart Disease

Coronary arteries supply blood to the heart muscle. When these arteries become blocked, the heart receives less oxygen, which can cause chest pain or heart attacks.

  1. a

    Describe what causes coronary heart disease.

    Aim for approximately 2 distinct marking points.

    [2]