Diffusion Flashcards
1
Q
What does diffusion allow?
A
Dissolved substances to pass through the cell membrane to get into or out of a cell.
2
Q
When does diffusion occur?
A
When particles spread and are free to move.
3
Q
Give two examples of diffusion.
A
In the gut, digested food products are moved from the gut cavity to the blood in the capillary of villus.
In the lungs, oxygen is moved from the alveolar air space to the blood circulating around the lungs.
