diffusion, osmosis + active transport Flashcards
1
Q
what state of matter does diffusion occur in?
A
gases and liquids
2
Q
why does it only occur in gases and liquids?
A
because their particles collide randomly and are spread out
3
Q
when the temperature increases what happens?
A
it diffuses faster
4
Q
when is the diffusion rate at its fastest?
A
when there is a higher temperature and gradient.
5
Q
does diffusion require energy?
A
no
6
Q
osmosis happens through a _____ _____ membrane.
A
partially permeable
7
Q
what state of matter does osmosis happen in?
A
a liquid
8
Q
substances are transported passively down a _______ gradient.
A
concentration
9
Q
does active transport require energy?
A
yes
