The diffusion of substances across a membrane is called passive transport. Molecules move from where the substance is more concentrated to where it is less concentrated.
passive
Passive transport & follow me on Twitter at BruhMann_
Carrier proteins can be involved in passive transport.
Exocytosis
Active transport requires energy while passive transport does not.
Active transport requires energy; passive transport does not.
Active transport requires energy; passive transport does not.
Active transport requires energy, passive transport does not.
Passive.
Passive.
nothing, passive transport doesn't require energy
Carrier proteins are sometimes used during passive transport.