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