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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)3 marks

Monitoring heart activity is important to assess how well the heart is functioning.

Description

Methods to Monitor Heart Activity

Three common methods to monitor heart activity are: 1. Electrocardiogram (ECG) 2. Measuring pulse rate 3. Listening to the sounds of closing heart valves using a stethoscope.

  1. a

    State one method used to monitor heart activity.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify two other ways to monitor heart activity besides ECG.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Heart

Paper 3Theory (Core)2 marks

Description

Heart Valve Sounds

The heart makes characteristic sounds when its valves close during the heartbeat cycle. These sounds can be heard using a stethoscope.

  1. a

    State what causes the 'lub-dub' sounds of the heart.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify one device used to listen to heart valve sounds.

    Aim for approximately 1 distinct marking point.

    [1]