Transport in Animals

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1. What is dissociation?

  • Release of oxygen from the haemoglobin
  • Attraction of oxygen to the haemoglobin
  • Release of hydrogen from the haemoglobin
  • Release of carbon dioxide from the haemoglobin
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2. What would an ECG trace be used to find?

  • Whether part of the heart muscle is unhealthy
  • The blood pressure within the heart
  • The size of the heart muscle

3. How is the artery adapted to maintain a high pressure?

  • Valves
  • Narrow lumen
  • Thin walls
  • Wide lumen

4. Which part of the heart is called the pacemaker?

  • Purkyne tissue
  • Atrioventricular node
  • Sinoatrial node
  • Vena cava

5. Which of the following is the process in which the heart fills with blood?

  • Atria
  • Ventricular Systole
  • Diastole
  • Atrial Systole

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