misc

ionic vs covalent vs hydrogen

ionic - attractions between negative and positive ions

covalent - atoms sharing electrons

hydrogen - weak electrical attractions

structures of proteins

primary - specific sequence of amino acids in polypeptide

secondary - results from hydrogen bonds that forms between amino acid- may result in alpha helixes or beta sheets

tertiary - coiling and folding due to interactions between R group, results in final 3d shape

quaternary - interaction between two or more polypeptide chains which result in a protein complex

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