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Biology: Biochemistry Quiz

Myoglobin has a single chain, whereas hemoglobin is a ____. active site
A cofactor binds to an apoenzyme to form an active ____. cofactor
Proteins are linear chains of amino acids joined by ____ bonds. cysteine
Each of the four subunits of hemoglobin contain one ____ ion. holoenzyme
The substrate binds to the ____ of an enzyme. iron
A ____ is a non-protein molecule required for enzyme activity. peptide
Temperature and ____ are factors that affect enzyme activity. pH
In some proteins, ____ residues are joined by disulfide bonds. tetramer