Other questions in this quiz

2. What are valves (in a blood vessel) used for?

  • To direct the flow of blood
  • Transport
  • To stop the blood from flowing
  • Photosynthesis

3. What type of blood vessel carries blood away from the heart?

  • Capillary
  • Artery
  • Vein
  • Lungs

4. Where is haemoglobin found?

  • In the red blood cells
  • In the blood
  • In the white blood cells
  • In the plasma

5. Why are capillaries most efficient at diffusion?

  • They're badass
  • Their walls are 1 cell thick
  • Their lumen is really big
  • There's lots of them






What a waste of time

Similar Biology resources:

See all Biology resources »See all Circulation resources »