Capillaries
- Created by: Emma
- Created on: 08-05-13 18:12
Other questions in this quiz
2. What do capillaries do?
- They carry blood really close to a few cells in the body to exchange substances with them
- They carry blood really close to every cell in the body to exchange substances with them
- They carry blood really far away from every cell in the body to exchange substances with tne
3. How thick are the walls?
- They are usually only one cell thick as it increases the rate of diffusion by decreasing the distance over which it occurs
- They are usually loads of cells thick as it increases the rate of diffusion by decreasing the distance over which it occurs
4. Are capillaries small and large?
- Small
- Large
5. What are the walls like?
- They are permeable, so substances can diffuse in and out
- They are impermeable, so substances can diffuse in and out
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