Diffusion Flashcards
1
Q
What is diffusion?
A
Diffusion is the random movement of a substance from an area of high concentration to an area of lower concentration
2
Q
How do you describe the movement of particles which are diffusing?
A
Random
3
Q
What is a concentration gradient?
A
A concentration gradient occurs when the concentration of particles is higher in one area than another.
In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
4
Q
What is Brownian Motion?
A
Brownian motion is the random motion of a particle as a result of collisions with surrounding gaseous molecules.
