Bio Cell Membrane & Transport Quiz: Vocab

cell membrane

definition: an organelle that surrounds any cell

function: controls what enters and exits a cell to maintain inner balance

homeostasis

internal balance within a cell

Selectively (Semi) Permeable

allows some molecules in and keeps others out

Equilibrium

the concentration of water is the same inside and outside the cell

Concentration gradient

a difference (from high to low) of molecules

Hypotonic Solution

low solute, high water

result - cell swells

more water outside the cell than inside

Hypertonic solution

high solute, low water

result - cell shrinks

more water inside the cell than outside

Isotonic solution

solute and water are =

result - cell stays the same

same amount of water inside and outside the cell