Cholesterol

Maintains membrane flexibility and stability

Carbohydrates

Found on the outer surface and acts as ID tags to help cells recognize each other and is important for the immune response

Passive Transport

no energy required for transport and moves substances down their concentration gradient

Diffusion

molecules move from high to low concentration and occurs until equilibrium is achieved

Osmosis

diffusion of water through a membrane where water moves towards a higher solute concentration.

hypotonic solution

Cell swelling

hypertonic solute

Cell shrinking

isotonic solution

Balance

Active transport

moves substances against their concentration gradient and requires protein pumps of vesicles

Facilitated Diffusion

uses channel or carrier proteins to help larger or charged molecules pass