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MCQs

Total Questions : 118 | Page 11 of 12 pages
Question 101. Which of the following is an example for group specificity?
  1.    Trypsin hydrolyzing peptide linkages involving arginine or lysine
  2.    Lipase hydrolyzing ester bond of lipids
  3.    Hexokinase phosphorylating one or more kind of hexoses
  4.    L-lactate dehydrogenase will act only on L-lactic acid, and not D-lactic acid
 Discuss Question
Answer: Option A. -> Trypsin hydrolyzing peptide linkages involving arginine or lysine
Answer: (a).Trypsin hydrolyzing peptide linkages involving arginine or lysine
Question 102. Which of these is not an example for stereo specificity?
  1.    L-lactate dehydrogenase will act only on L-lactic acid, and not D-lactic acid
  2.    D-glucose oxidase acting only on D-glucose and not L-glucose
  3.    L-amino oxidase acts only on L-amino acids and not D-aminoacids
  4.    Hexokinase phosphorylating one or more kind of hexoses
 Discuss Question
Answer: Option D. -> Hexokinase phosphorylating one or more kind of hexoses
Answer: (d).Hexokinase phosphorylating one or more kind of hexoses
Question 103. Which of the following is an example for broad substrate specificity?
  1.    Chymotrypsin hydrolyzing peptide bonds attached to aromatic aminoacids
  2.    D-glucose oxidase acting only on D-glucose and not L-glucose
  3.    Hexokinase phosphorylating one or more kind of hexoses
  4.    Lipase hydrolyzes ester bond of lipids
 Discuss Question
Answer: Option C. -> Hexokinase phosphorylating one or more kind of hexoses
Answer: (c).Hexokinase phosphorylating one or more kind of hexoses
Question 104. Salivary α-amylase cleaving α(1 → 4) glycosidic bond of carbohydrates is an example for which type of specificity?
  1.    Group specificity
  2.    Bond specificity
  3.    Reaction specificity
  4.    Broad substrate specificity
 Discuss Question
Answer: Option B. -> Bond specificity
Answer: (b).Bond specificity
Question 105. L-lactate dehydrogenase: L-lactic acid:: Salivary α-amylase: __________
  1.    D-aminoacid
  2.    L-aminoacid
  3.    α- 1,4 glycoside linkage
  4.    D-glucose
 Discuss Question
Answer: Option C. -> α- 1,4 glycoside linkage
Answer: (c).α- 1,4 glycoside linkage
Question 106. Which of these is not a plasma specific enzyme?
  1.    Ferroxidase
  2.    Pseudocholinesterase
  3.    Lipoprotein lipase
  4.    Acid phosphatase
 Discuss Question
Answer: Option D. -> Acid phosphatase
Answer: (d).Acid phosphatase
Question 107. Which of the following is not a plasma nonspecific enzymes?
  1.    Alanine amino transferase
  2.    Aldolase
  3.    Enzymes involved in blood coagulation
  4.    Aspartate transaminase
 Discuss Question
Answer: Option C. -> Enzymes involved in blood coagulation
Answer: (c).Enzymes involved in blood coagulation
Question 108. Amylase: peptic ulcer:: Trypsin: ___________
  1.    Prostatic cancer
  2.    Hepatic parenchymal diseases
  3.    Cystic fibrosis
  4.    Hepatobiliary disease
 Discuss Question
Answer: Option C. -> Cystic fibrosis
Answer: (c).Cystic fibrosis
Question 109. Which of the following enzymes is not used in the diagnosis of myocardial infarction?
  1.    Aldolase
  2.    Aspartate transaminase
  3.    Creatine kinase
  4.    Lactate dehydrogenase
 Discuss Question
Answer: Option A. -> Aldolase
Answer: (a).Aldolase
Question 110. Which of the following enzyme is not used to diagnose hepatobiliary disease?
  1.    Alkaline phosphatase
  2.    Alanine aminotransferase
  3.    γ-glutamyl transferase
  4.    5ᶦ – nucleotidase
 Discuss Question
Answer: Option B. -> Alanine aminotransferase
Answer: (b).Alanine aminotransferase

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