membrane structure & function(chapter 7)

functions of membrane proteins . . .

movement across cellular membranes

a) diffusion(1) osmosis

b) transport by carriers(1) facilitated transport

(2) active transport

c) endocytosis(1) phagocytosis

(2) pinoocytosis

(3) receptor-mediated endocytosis

movement across cellular membranes

a) diffusion(1) osmosis

b) transport by carriers(1) facilitated transport

(2) active transport

c) endocytosis(1) phagocytosis

(2) pinoocytosis

(3) receptor-mediated endocytosis

this creates bound water molecules that cannot pass throughthe membrane

unbound water molecules will diffuse across the membrane till equilibrium

more bound H 2O

less u

nbound H 2O

less b

ound H 2O

more unbound H 2O

movement across cellular membranes

a) diffusion(1) osmosis

b) transport by carriers(1) facilitated transport

(2) active transport

c) endocytosis(1) phagocytosis

(2) pinoocytosis

(3) receptor-mediated endocytosis

movement across cellular membranes

a) diffusion(1) osmosis

b) transport by carriers(1) facilitated transport

(2) active transport

c) endocytosis(1) phagocytosis

(2) pinoocytosis

(3) receptor-mediated endocytosis

movement across cellular membranes

a) diffusion(1) osmosis

b) transport by carriers(1) facilitated transport

(2) active transport

c) endocytosis(1) phagocytosis

(2) pinoocytosis

(3) receptor-mediated endocytosis