Unit 2 Flashcards
1
Q
Define diffusion:
A
Net movement (overall direction) of particles from a region of high concentration to lower concentration over time, requiring no energy to do so (passive transport).
2
Q
Is a gas a fluid?
A
Yes.
3
Q
What is equilibrium?
A
When the particles are evenly distributed throughout a space.
4
Q
What are the 4 factors affecting diffusion?
A
- Concentration gradient
- Surface area
- Distance
- Temperature
5
Q
Give an example of diffusion:
A
The circulatory system. Constant flow of blood maintains a concentration gradient (if it doesn’t move, it will reach equilibrium!). Being warmblooded helps with this process.
6
Q
A
