atom

VERY small particle made of protons (+), electrons (-) and neutrons (no charge)

subatomic

smaller than an atom

molecule

two or more atoms bonded together

bond

chemical linkage between atoms

electron

negatively charged subatomic particle responsible for true bonding

compound

molecule made of more than one type of atom

polar

molecule that has opposite charges at each end

hydrogen bonding

attraction between positive charge on a hydrogen in a dipole and the negative end of another molecule. Think water!

monomer

molecule that can bond to other similar molecules to form a larger molecule

polymer

molecule made of many monomers bonded together

macromolecule

big molecule

carbohydrate

sugar molecules (monosaccharides AND polysaccharides)

monosaccharide

single sugar molecule (monomer)

polysaccharide

many sugar molecules bonded together (polymer)

nucleotide

monomer used to build nucleic acids (5 types)

nucleic acid

polymer consisting of a long chain nucleotides

amino acids

monomer used to build proteins (20 types)

protein

polymer consisting of long chains of amino acids

lipid

macromolecule consisting of a long chain of carbon and hydrogen atoms

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