cholesterol

stabilizes the cell membrane

exocydus

two layers of phospholipids

phospholipids

hydrophilic head and hydrophobic tails

Carbohydrates

Attached to proteins; involved in cell recognition

osmosis

movement of water through the cell membrane

passive transport

molecules move from high to low concentration

active transport

requires energy to transport molecules across the cell membrane

Endocydus

Large molecules can enter

equilibrium

result of diffusion is both sides of the membrane reach

exocytosis

Large molecules can exit the cell

solvent

what does the dissolving

solute

what is being dissolved

solution

a mixture

hypeRtonic

occurs when the concentration of solutes higher on the outside of the cell relative to the inside

istonic

concentration of solute equal inside and outside the cell

hypOtonic

Concentration of the solutes is higher on the inside of the relative to the exterior

Protein pump

moves ions against the gradient

carrier protein

Used to help substances enter or exit the cell membrane

diffusion

when molecules move from areas of high concentration to ares of low concentration

Glycoproteins

recognizing other cells

Energy production

mitochondria, chloroplast