1) An allosteric site Is: a) a unique sequence of amino acid residues; b) a regulatory center distant from the active center; c) cofactor; d) molecular site; e) coenzyme. 2) What is the non-protein part of the enzyme called: a) apoenzyme; b) coenzyme; c) holoenzyme; d) multienzyme; e) isoenzyme; 3) What model of interaction between enzyme and substrate was proposed by Fisher: a) "hands and gloves" b) "key and lock" (+) c) "boots and feet" d) "racks" e) "induced correspondence"? 4) The Michaelis constant is numerically equal to the concentration of the substrate at which the reaction rate is equal to: a) maximum; b) 1/2maximum c) 1/5maximum d) 1/10maximum 5) The Michaelis-Menten equation. What is the Vo/Vmax ratio when [S]=4Km

1) b) a regulatory center distant from the active center;2) b) coenzyme;3) b) "key and lock" 4) b) 5) When , the Vo/Vmax ratio is .