Dissolved Substances Flashcards
1
Q
How can dissolved substances move into and out of cells?
A
By diffusion
2
Q
What is diffusion?
A
The spreading out of particles of a gas, or any other substance in solution, resulting in the net movement from a region where they are of a higher concentration to a region with a lower concentration
3
Q
The greater the difference in concentration…
A
The faster the rate of diffusion
4
Q
How does oxygen, required for respiration, pass through cell membranes?
A
By diffusion
