transportation Flashcards
1
Q
does diffusion need ATP?
A
no
2
Q
in diffusion does it move down or up the concentration gradient?
A
down
3
Q
what is osmosis?
A
diffusion of water across the cell membrane
4
Q
what is facilitated diffusion?
A
the membrane uses transport proteins to aid the diffusion
5
Q
what does active transport need?
A
ATP
6
Q
what is active transport?
A
the movement of particles from low to high concentration
