B3.2 Transport Quiz
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5 questions, one answer each
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1. Which feature lets arteries maintain pressure between heartbeats?
- A. Valves
- B. Elastic fibres
- C. Fenestrations
- D. Thin walls
2. HL: Tissue fluid differs from plasma because it lacks:
- A. Water
- B. Glucose
- C. Most plasma proteins
- D. Ions
3. HL: In the mammalian double circulation, blood leaving the lungs goes to the:
- A. Right atrium
- B. Left atrium
- C. Right ventricle
- D. Aorta
4. HL: Which structure initiates each heartbeat?
- A. Atrioventricular valve
- B. Sinoatrial node
- C. Septum
- D. Semilunar valve
5. HL: Root pressure is most important:
- A. On hot, dry, windy days
- B. In spring before leaves open
- C. At midday in summer
- D. Only in the phloem