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MCQs

Total Questions : 60 | Page 2 of 6 pages
Question 11. If enzyme code EC 2.6.1.1 belongs to aspartate amino transferase, then the code EC 4.3.1.3 belongs to which enzyme?
  1.    Chymosin
  2.    Histidase
  3.    Glucose oxidase
  4.    Glutathione synthetatase
 Discuss Question
Answer: Option B. -> Histidase
Answer: (b).Histidase
Question 12. Which of the following is a systematic name given by enzyme commission?
  1.    Renin
  2.    Aspartate aminotransferase
  3.    Glutathione synthetase
  4.    D-xylose ketol-isomerase
 Discuss Question
Answer: Option D. -> D-xylose ketol-isomerase
Answer: (d).D-xylose ketol-isomerase
Question 13. Pick the odd one out of the following.
  1.    Decarboxylases
  2.    Dehydrogenases
  3.    Oxygenases
  4.    Peroxidases
 Discuss Question
Answer: Option A. -> Decarboxylases
Answer: (a).Decarboxylases
Question 14. Which enzyme hydrolysis casein?
  1.    Chymosin
  2.    Glucose oxidase
  3.    Alanine aminotransferase
  4.    Histidase
 Discuss Question
Answer: Option A. -> Chymosin
Answer: (a).Chymosin
Question 15. Which of the oxidoreductases are involved in oxygen transfer form molecular oxygen?
  1.    Peroxidases
  2.    Oxidases
  3.    Oxygenases
  4.    Dehydrogenases
 Discuss Question
Answer: Option C. -> Oxygenases
Answer: (c).Oxygenases
Question 16. What is the name of the following reaction?
Glucose-6-phosphate\(\underset{Glucose-6-phosphate \,isomerase}{\rightleftharpoons}\) Fructose-6-phosphate
  1.    Ligation reaction
  2.    Hydrolysis
  3.    Isomerization
  4.    Redox reaction
 Discuss Question
Answer: Option C. -> Isomerization
Answer: (c).Isomerization
Question 17. The class of enzymes which contains extensive group of enzymes are ____________
  1.    Ligases
  2.    Oxidoreductases
  3.    Aldolases
  4.    Esterases
 Discuss Question
Answer: Option B. -> Oxidoreductases
Answer: (b).Oxidoreductases
Question 18. Enzymes are amphoteric molecules.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 19. The pH at which the net charge on the enzyme molecule is zero is called __________
  1.    pKₐ
  2.    Half-life
  3.    Isoelectric point
  4.    Kₘ
 Discuss Question
Answer: Option C. -> Isoelectric point
Answer: (c).Isoelectric point
Question 20. Which class of enzymes contain relatively small group of enzymes?
  1.    Ligases
  2.    Oxidoreductase
  3.    Glutathione synthetase
  4.    D-xylose ketol-isomerase
 Discuss Question
Answer: Option D. -> D-xylose ketol-isomerase
Answer: (d).D-xylose ketol-isomerase

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