transport protein that provides a tube like opening in the plasma membrane through which particles can diffuse
passive transport
is used during active transport but not passive transport
energy
process by which a cell takes in material by forming a vacuole around it
endoctyosis
particle movement from an area of higher concentration to an area of lower concentration
channel proteins
process by which a cell expels wastes from a vacuole
exocytosis
a form of passive transport that uses transport proteins
facilitated diffusion
particle movement from an area of lower concentration to an area of higher concentration
active transport
transport protein that changes shape when a particle binds with it
carrier proteins