fluid mosaic model

what is the function of the cell membrane

control substances moving in and out of the cell

what is the structure of the cell membrane

phospholipid bilayer

what is the property of the phosphate head

hydrophilic

what is the property of the phospholipid tails

hydrophobic

what types of molecule can and can’t cross through the phospholipid bilayer

can : lipid soluble

can’t : water soluble

where are intrinsic proteins found

integrated through the membrane

where are extrinsic proteins found

on the surface

function of proteins in the membrane

mechanical support

receptors for hormones

protein channels / carrier proteins

enzyme action

how does cholesterol affect the membrane

makes the membrane more rigid

function of cholesterol

prevent the loss of water soluble molecules and ions from the cell

what property of cholesterol aids its role

hydrophobic

function of glycolipids

cell surface receptors

function of glycoproteins

cell surface receptors

neurotransmitters

what can each component other than cholesterol do

allow cells to adhere to one another to form tissues