exocytosis, endocytosis

simple diffusion, facilitated diffusion

active transport, passive transport

diffusion, osmosis

glycoproteins

peripheral proteins

integral proteins

glycolipids

facilitated diffusion

receptor-mediated endocytosis

channel proteins

osmosis

facilitated diffusion

exocytosis

osmosis

hydrolysis

pinocytosis

In the absence of sucrose, the ATP-powered proton pump does not function, so there is no proton gradient

the movement of protons through the cotransport protein cannot occur unless sucrose moves at the same time

protons cannot move through membrane transport proteins

protons are freely permeable through the phospholipid bilayer, so no transport protein is needed for protons

exocytosis - the movement of water and solutes out of the cell by vesicle fusion with the plasma membrane

osmosis - passive diffusion of water and small solutes across a membrane

phagocytosis - secretion of large particles from the cell by fusion of vesicles with the plasma membrane

pinocytosis - the uptake of water and small solutes into the cell by formation of vesicles at the plasma membrane

facilitated diffusion

none of the above

simple diffusion

osmosis

a cholesterol molecule

a transmembrane protein

a glycoprotein

a phospholipid

a glycolipid

They are free to depart from the membrane and dissolve in the surrounding solution

They can move laterally along the plane of the membrane

They occur in an uninterrupted bilayer, with membrane proteins restricted to the surface of the membrane

They have hydrophilic tails in the interior of the membrane

Carbohydrate, nucleic acid

Lipid, protein

Protein, carbohydrate

Lipid, nucleic acid