diffusion Flashcards
1
Q
what is diffusion
A
the spreading out of particles from an area of higher concentration to an area of low concentration
2
Q
what increases the diffusion rate
A
• a bigger concentration gradient (the difference in concentration)
• higher temperature (more energy for particles)
3
Q
what can be diffused throught a cell membrane
A
small molecules - oxygen, glucose, amino acids and water
4
Q
what increases the diffusion rate of a cell membrane
A
a large surface area
