Mass transport and blood vessels Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which feature of a large animal makes diffusion alone inadequate?
- A. Large surface area to volume ratio
- B. Short diffusion distance
- C. Small surface area to volume ratio
- D. Low metabolic rate
2. Which vessel has valves?
- A. Vein
- B. Artery
- C. Capillary
- D. Arteriole
3. Why does an artery have elastic tissue in its wall?
- A. To prevent backflow
- B. To allow exchange
- C. To stretch and recoil, smoothing pressure surges
- D. To make blood flow slowly
4. What is the main reason capillary walls are one cell thick?
- A. To withstand high pressure
- B. To give a short diffusion distance
- C. To prevent backflow
- D. To make blood flow faster
5. A vein has a wide lumen. What is the advantage?
- A. It reduces resistance to the flow of blood
- B. It increases the pressure
- C. It allows exchange
- D. It stretches under pressure