Diffusion Flashcards
1
Q
What is diffusion?
A
Diffusion is the spreading out of particles from an area of high concentration to an area of low concentration.
2
Q
What does diffusion happen in?
A
Solution and gasses
3
Q
What is a concentration gradient?
A
The difference in concentration
4
Q
What gives a faster diffusion rate?
A
A higher temperature, bigger concentration rate as the particles have more energy.
5
Q
What substances can diffuse through cell membranes?
A
Very small molecules eg. oxygen, glucose amino acids & water
6
Q
How does a bigger surface area effect the diffusion rate?
A
It speeds it up as more particles can pass through at once.
