Diffusion Flashcards
1
Q
What is diffusion?
A
The spreading out of particles from an area of high concentration to low concentration
2
Q
When the particles move about randomly, how do they end up?
A
Evenly spaced
3
Q
What do particles do in diffusion?
A
SPREAD OUT
4
Q
The bigger the difference in concentration…
A
…the faster the rate of diffusion
5
Q
What substances does diffusion occur?
A
Solutions and gases because particles are free to move
6
Q
3 subsatnces that can diffuse through cell membranes
A
Glucose
Amino acids
Water
7
Q
2 substances that cannot diffuse through cell membranes
A
Starch
Proteins
