cell transport Flashcards
1
Q
cell membrane
A
boundary of a cell that allows things in and out
2
Q
semipermeable membrane
A
selective in what it allows in and out
3
Q
biophospholipid layer
A
contains 2 phosphates and 2 lipids
4
Q
hydrophilic
A
attracted to water (phosphates)
5
Q
hydrophobic
A
not attracted to water (lipids)
6
Q
fluid mosaic
A
fluidity/movement to the cell membrane
7
Q
diffusion
A
causes substances to move across the cell membrane, does not require cells to use energy, constantly moving, high to low concentration gradient
8
Q
osmosis
A
diffusion of water through a semi permeable membrane
9
Q
facilitated diffusion
A
move from high to low concentrations
10
Q
active transport
A
moves from low to high concentration, requires cell energy
11
Q
endocytosis
A
in cell
12
Q
exocytosis
A
exit cell
13
Q
lipids
A
hydrophobic
14
Q
phosphate
A
hydrophilic
