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Biology: Biochemistry Quiz

The substrate binds to the ____ of an enzyme. active site
A protein's structure can be revealed by ____ crystallography. beta sheet
In some proteins, ____ residues are joined by disulfide bonds. cofactor
Temperature and ____ are factors that affect enzyme activity. cysteine
The alpha helix and ____ are secondary structures of proteins. holoenzyme
A cofactor binds to an apoenzyme to form an active ____. iron
Each of the four subunits of hemoglobin contain one ____ ion. pH
A ____ is a non-protein molecule required for enzyme activity. x-ray