Cambridge International IGCSE Biology (0610) · CAIE 0610
9 Transport in animals
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Transport in animals
- Explain how plasma transports substances around the body, giving three examples of substan… (4 marks, Explain)
- Describe how red blood cells and plasma each contribute to the transport of substances in … (4 marks, Describe)
- Describe the role of platelets and fibrin in blood clotting. (4 marks, Describe)
- Veins contain valves, whereas arteries do not. Explain why veins need valves to function c… (4 marks, Explain)
- Explain how the structure of capillaries makes them well adapted for the exchange of subst… (4 marks, Explain)
- Explain why mammals have a double circulatory system rather than a single circulatory syst… (4 marks, Explain)
- Explain why the heart rate increases during physical activity. (4 marks, Explain)
- Explain why the coronary arteries are important to the heart, and describe what happens wh… (4 marks, Explain)
- Describe the path taken by a red blood cell through the heart, starting from when it arriv… (4 marks, Describe)
- Explain why the wall of the left ventricle is thicker than the wall of the right ventricle… (4 marks, Explain)
- Describe the structural differences between an artery and a vein that allow each vessel to… (4 marks, Describe)
- Arteries have a thick layer of smooth muscle and elastic fibres in their walls, whereas ve… (4 marks, Explain)
- Compare the walls of arteries and veins in terms of their muscle layer, elastic fibre laye… (4 marks, Compare)
- Describe how white blood cells protect the body against pathogens, including the roles of … (4 marks, Describe)
- State four structural features of red blood cells and, for each feature, explain how it he… (4 marks, Explain)
- Describe the differences between arteries and veins in terms of their structure and the co… (4 marks, Describe)
- Describe the route taken by a red blood cell as it travels from the vena cava to the aorta… (4 marks, Describe)
- Explain why mammals have a double circulatory system rather than a single circulatory syst… (4 marks, Explain)
- Describe the roles of the valves found in the heart, stating their names and the locations… (4 marks, Describe)
- Describe the role of valves in the heart, and explain why the wall of the left ventricle i… (4 marks, Describe and Explain)
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