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21 terms

BIO - chemistry test review

STUDY
PLAY
chemistry
study of matter
matter
has mass and takes up space
atoms
building blocks of matter
center of atom
proteins and neutrons
element
substance cant be broken down.
compound
two elements combine.
chemical bond
force that holds together
covalent bond
electrons shared
molecule
has covalent bonds
ion
lost or gained electrons
ionic bond
attraction between atoms
chemical reaction
atoms reorganized; bonds reform
catalyst
lowers activation energy
mixture
retains individual characteristics
carbohydrate
energy
lipid
fats, oils, waxes
protein
made up of amino acids joined by peptide bonds
nucleic acids
transmit genetic info;DNA and RNA
ATP
storehouse of energy
organic compound
carbon
pH
measure of H+ IN solution