chemical basis of life Flashcards
exam 1
atoms
smallest unit composed of protons, neutrons, electrons
atomic #
of protons/electrons
isotope
2 or more forms of the same element w/ the same # of protons/ electrons but different neutrons
catabolic
decomposition
mass #
number of protons+neutrons
electrolytes
cations/anions that dissociate in water and can conduct a current
non electrolytes
molecules that don’t dissociate in water
anabolic
growth, maintenance, repair
acid
donates hydrogen/protons
base
accepts hydrogen/proton
buffer
solution containing a conj base and acid pair occurring in similar concentrations
carb composition
composed mostly of carbon, hydrogen, oxygen
protein composition
composed of carbon, hydrogen, oxygen, nitrogen
lipid composition
composed mostly of carbon, hydrogen, oxygen
atp composition
adenosine and 3 phosphate groups