i need the answers of all question its for biochemistry

By what percent would an enzyme-catalyzed reaction be faster, if we add 20% more enzyme to the reaction? a. 30% b. 20% c. 10% Clear my choice which of these enzyme-substrate binding models best describes how a substrate binds? a. lock and key b. induced fit model c. Ligand fit models Clearmy choice If the active site of an enzyme has negatively charged amino acids, what type of amino acids should be found on the substrate? a. Positively charged b. Negatively charged c. Aromatic Clear my choice Which of these enzymes adds electrons to another molecule? a. kinase b. Oxidoctase c. Reductase Clear my choice Some RNA molecules are also able to act as catalysts, these RNAs are called a. ribozymes b. ribonuclied c. Ribonuclear enzyme Clear my choice Look at the above graph. Line C is an enzymatic reaction without an inhibitor. Lines A and B are reactions with inhibitors. What is the Km of the line which has the greatest concentration of inhibitor? a. 0.167 b. 0.125 c. 0.5 Inactive enzymes which are not bound to their cofactors are called...? a. Coenzymes b. Holoenzymes c. Apoenzymes Clear my choice If a molecule is structurally similar to a substrate and has the ability to bind to an enzyme's active site, that molecule can act as a a. non competitive inhibitor b. uncommunicative inhibitor c. competitive inhibitor Clear my choice A scientist has discovered two new enzymes. She wants to know which one of them produces the most product per mole; per second. What kinetic value does she need? a. The Vmax b. The Kcat c. The Km Clear my choice