This post contains Solved MCQs on Enzymology for students and other people who are looking for these Enzymology Multiple Choice Questions with Answers. You can prepare this Biochemistry Quiz online by practising them here on Ilmihub. I found a PDF file online with this Enzymology Quiz and posted these Solved MCQs of here for your convenience. You can Visit This Link for more important MCQs.
Solved MCQs- Enzymology Multiple Choice Questions with Answers – Biochemistry Quiz – Enzymology Quiz
1. Who is the father of enzymology?
a. Anton von Leeuwenhoek
b. Edward Howell
c. JB Sumner
d. John Northrop
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]b. Edward Howell[/bg_collapse]
2. Which of the following statement/s is/are correct?
a. The enzyme is a biocatalyst
b. Enzyme increases the rate of reaction
c. Enzyme decreases the activation energy of the reaction
d. All the above
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. All the above[/bg_collapse]
3. Nature of the enzyme is_______.
a. Protein
b. Lipid
c. Carbohydrate
d. None
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]a. Protein[/bg_collapse]
4. An enzyme was crystallized for the first time by_________.
a. John Northrop
b. Edward Buchner
c. J.B. Sumner
d. None
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]c. J.B. Sumner [/bg_collapse]
5. Which of the following is correct?
a. Apoenzyme + Cofactor = Holoenzyme
b. Apoenzyme – Cofactor = Holoenzyme
c. Apoenzyme =Cofactor – Holoenzyme
d. None
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]a. Apoenzyme + Cofactor = Holoenzyme[/bg_collapse]
6. Enzymes are classified into ________ types.
a. Two
b. Three
c. Five
d. Six
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. Six[/bg_collapse]
7. Competitive inhibitor of an enzyme is__________.
a. Structural analogue of enzyme
b. Functional analogue of enzyme
c. Functional analogue of substrate
d. Structural analogue of substrate
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. Structural analogue of substrate[/bg_collapse]
8. Majority of the enzymes are inactive at
a. At 25ºC
b. At 15ºC
c. Between 30-40ºC
d. Above 70ºC
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. Above 70ºC[/bg_collapse]
9. Induced fit theory for the formation of Enzyme-Substrate complex was proposed by______.
a. Koshland
b. Charles Leibeg
c. Buchner
d. Fischer
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]a. Koshland[/bg_collapse]
10. SI Unit for enzyme activity is
a. Bel
b. mho
c. Hertz
d. Katal
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. Katal[/bg_collapse]
11. Which of the following is the reason for Gout disease?
a. Deficiency of Xanthine Oxidase enzyme
b. Overproduction of Xanthine Oxidase
c. Deficiency of ß-galactosidase enzyme
d. Deficiency of Lipase enzyme
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]b. Overproduction of Xanthine Oxidase[/bg_collapse]
12. Which of these enzymes is related to molecular biology?
a. DNA Ligase
b. DNA topoisomerase
c. Polymerase
d. All the above
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. All the above[/bg_collapse]
13. Deficiency of the enzyme ß-glucocerebrosidase results in___________.
a. Gaucher’s Disease
b. Faber’s disease
c. Krabbe’s disease
d. Lesh-Nyhan Syndrome
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]a. Gaucher’s Disease[/bg_collapse]
14. The enzyme that differs in amino acid sequence but catalyzes the same reaction are_________.
a. Co-factors
b. co-enzymes
c. Apoenzymes
d. Isoenzymes
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. Isoenzymes[/bg_collapse]
15. The temperature at which the maximum activity of the enzyme occurs is_________.
a. Optimum temperature
b. Maximum Temperature
c. Minimum Temperature
d. None
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]a. Optimum temperature[/bg_collapse]
16. The class of enzymes that catalyzes synthetic reactions where two molecules are joined together and ATP is used is___________.
a. Hydrolases
b. Lyases
c. Ligases
d. Isomerases
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]c. Ligases[/bg_collapse]
17. The non-protein organic part of the enzyme is__________.
a. Co-factor
b. Co-enzyme
c. Apoenzyme
d. Isoenzyme
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]b. Co-enzyme[/bg_collapse]
18. Pepsin and urease are examples for which class of enzymes?
a. Hydrolases
b. Ligases
c. Oxidoreductases
d. Lyases
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]a. Hydrolases[/bg_collapse]
19. Which of the following enzymes is elevated in alcoholism
a. Hepatitis
b. Serum Glutamate Pyruvate Trasmittase
c. Acid Phosphatase
d. glutamyl transpeptidase
[bg_collapse view=”button-orange” color=”#4a4949″ expand_text=”Show Answer” collapse_text=”Hide Answer” ]d. glutamyl transpeptidase[/bg_collapse]
Please inform us in comment section, if you find any mistake in this quiz.
