membranes Flashcards
(8 cards)
1
Q
during one cycle, sodium and potassium pump binds and move:
A
3 sodium and 2 potassium
2
Q
hypotonic
A
extracellular fluid concentration is less than in the cell. water moves into cell
3
Q
diffusion in membranes
A
concentration of solutes spreads to where there is less of it
4
Q
osmosis
A
adding water to places with higher concentration of solute in order to get an equilibrium
5
Q
what happens to the cell when its hypotonic
A
swells and bursts
6
Q
hypertonic
A
extracellular fluid concentration is greater inside cell. water moves out of cell
7
Q
what happens to the cell when its hypertonic
A
cell becomes limp.
8
Q
isotonic
A
no water movement
