Diffusion Flashcards
1
Q
What is diffusion?
A
Movement of molecules from an area of high concentration to an area of low concentration.
2
Q
What is concentration gradient?
A
The difference in concentration of a substance between two areas.
3
Q
Is diffusion active transport or passive transport?
A
Diffusion is passive transport
4
Q
What is passive transport?
A
The movement of molecules across a membrane without the use of energy.
5
Q
What is active transport?
A
The movement of molecules across a membrane with the use of energy.
6
Q
What is the purpose of diffusion?
A
To even out the concentration of molecules across a space.
In terms of cells, this would mean that a high concentration of molecules outside of a cell would want to diffuse and spread into the cell. Evening out the concentration, it diffuses.
