Home⇒ Medical Science⇒ Biochemistry⇒ Enzymes
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ Enzyme-driven metabolic pathways can be made more efficient by All of the above [other wrong options] [Discuss in forum] |
| Q2 ⇒ The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about 58 kJ/mol [other wrong options] [Discuss in forum] |
| Q3 ⇒ Common feature in all serine proteases is a single reactive serine residue [other wrong options] [Discuss in forum] |
| Q4 ⇒ Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of two proteins designated A and B [other wrong options] [Discuss in forum] |
| Q5 ⇒ Which of the common features are shared between serine and aspartate proteases? All of the above [other wrong options] [Discuss in forum] |
| Q6 ⇒ The role of Asp 102 and His 57 during trypsin catalysis is to function as a proton shuttle [other wrong options] [Discuss in forum] |
| Q7 ⇒ What is the specificity of the Clostripain protease? It cleave after Arg residues [other wrong options] [Discuss in forum] |
| Q8 ⇒ Before they can react, many molecules need to be destabilized. This state is typically achieved through the input of a small amount of activation energy [other wrong options] [Discuss in forum] |
| Q9 ⇒ In the enzyme-catalyzed reaction shown below, what will be the effect on substances A, B, C, and D of inactivating the enzyme labeled E2? A ---(E1)---> B ---(E2)---> C ---(E3)---> A and B will still be produced, but not C or D [other wrong options] [Discuss in forum] |
| Q10 ⇒ Which of the following statements about enzymes or their function is true? All of the above [other wrong options] [Discuss in forum] |
| Q11 ⇒ The E.coli pyruvic acid dehydrogenase complex is reported to Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2 [other wrong options] [Discuss in forum] |
| Q12 ⇒ Which of the following (s) is/are serine proteases? all of these [other wrong options] [Discuss in forum] |
| Q13 ⇒ Which of the following is false statement with regard to comparison between Serine and HIV proteases? Both forms an acyl-enzyme intermediate [other wrong options] [Discuss in forum] |
| Q14 ⇒ How is the enzyme COX-1 important in human health? It catalyzes the production of hormones that maintain the stomach lining [other wrong options] [Discuss in forum] |
| Q15 ⇒ The cleavage specificity of trypsin and chymotrypsin depend in part on the size, shape, and charge of the active site or specificity pocket [other wrong options] [Discuss in forum] |
| Q16 ⇒ The nucleophile in serine proteases is both (a) and (b) [other wrong options] [Discuss in forum] |