Page 1 :
Dr Rafiq Zakaria Campus, Maulana Azad College, Aurangabad, , Class: M.Sc Org Ind Year Date: 11-02-2022, Subject. CHOE 315( Asymmetric Synthesis and Bioorganic Chemistry) Time: 10.00-11.00 am, , 1) Digestive enzymes belong to the class, A) Hydrolases, , B) oxidoreductases, , C) Lysases, , D) None of these, , 2) Enzymes synthesized in inactive form are called, A) Pro enzymes, , B) Caenzymes, , C) Apo enzymes, , D) None of these, , 3) Zymogen is, A) Enzyme poison, B) Enzyme modulator, C) Enzyme inhibitor, D) Enzyme precursor, 4) Blocking of enzyme action by blocking its active site is, A) Allosteric inhibiton, B) Feedback inhibition, C) Compititive inhibition, D) Uncompetitive inhibiton, 5) The concept of “induced fit™ refers to the fact that:, A) When a substrate binds to an enzyme, the enzyme induces a loss of water (desolation), from the substrate, B) Substrate binding may induce a conformational change in the enzyme, which then brings, catalytic groups into proper orientation.

Page 2 :
C) enzyme-substrate binding induces an increase in the reaction entropy, thereby catalyzing, the reaction., , D) Enzyme specificity is induced by enzyme-substrate binding., , 6) Which of the following statement is/are correct about Enzyme:, , A. An Enzyme is a protein and is used as a catalyst to accclerate the reaction, , B. Life would not exist without the presence of enzymes., , C. Enzymes participate in cellular metabolic processes, , D. All the above, , 7) Name an enzyme which is not proteinaceous in nature?, , A) Cellulase, , B) Xylanase, , C) Ribozyme, , 1D) Peptidiase, , 8) Inactive enzymes which are not bound to their cofactors are called?, A)Apoenzymes, , B) Coenzymes, , C) Enzyme inhibitors, , D) Holoenzymes, , 9) The ‘lock and key hypothesis’ mechanism is related with?, A) Digestion of fat in the body, , B) For enzyme specificity, , C) For the formation of vacuole, , D) Explosives, , 10) Enzyme papain is used with success to?, , A) Increased meat production, , B) Ripen papaya fruit, , c) Leaven bread, , D) Tenderize meat, , 11) Most Industrial Enzymes Obtained From?, A) Plants, , B) Microbes, , C) Animal tissues