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Main ingredient inside/outside of cell
water
what are responsibly for resting/action potentials
dissolved ions
what is the most important property of water?
the uneven distribution of charge
what hold net electrical charges of ions?
ionic bonds
spheres of hydration
clouds of water that surround ions
what does electrical charge depend on?
number of protons and electrons
divalent
2 particle difference
charge of cations
positive
charge of anions
negative
what are the drivers at the axon hillock?
sodium and potassium
hydrophobic substances
have no basis of chemical reaction with water
non-polar covalent bonds are present in…
hydrophobic molecules
describe the sharing of electrons in non-polar covalent bonds
electrons are truly shared equally, there is no net electrical charge
lipids are _____ molecules
non-polar
what do lipids do?
block water and water soluble substances
composition of phospholipids
contain long polar chains of C-H, has polar phosphate groups, polar heads and non-polar tails
