Diffusion Flashcards
1
Q
what is diffusion?
A
The gradual spreading of particles from areas of low concentration to high concentration
2
Q
Where does diffusion take place?
A
In gases and solutions as the particles are free to move in these
3
Q
what is the simplest type of diffusion?
A
gases diffusing each other
4
Q
what is the rule of rate of diffusion?
A
The bigger the difference in concentration the faster the diffusion rate
5
Q
how does diffusion happen in cell membranes?
A
Only the smallest molecules can move in and out of cell membranes.
6
Q
give examples of molecules that could be diffused in cell membranes
A
Oxygen, amino acids, glucose and water.
7
Q
give examples of molecules too big to be diffused
A
Starch and protien
