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MCQs

Total Questions : 94 | Page 8 of 10 pages
Question 71. What is the final product of purine degradation in mammals?
  1.    Guanine
  2.    Inosine
  3.    Uric acid
  4.    Hypoxanthine
 Discuss Question
Answer: Option C. -> Uric acid
Answer: (c).Uric acid
Question 72. Name the genetic disorder which is caused by the deficiency of enzyme HGPRT?
  1.    SCID
  2.    Lesch-Nyhan syndrome
  3.    Cystic fibrosis
  4.    Down syndrome
 Discuss Question
Answer: Option B. -> Lesch-Nyhan syndrome
Answer: (b).Lesch-Nyhan syndrome
Question 73. Name the deficiency in which T and B lymphocyte do not develop properly?
  1.    XLA
  2.    CVID
  3.    SCID
  4.    Multiple myeloma
 Discuss Question
Answer: Option C. -> SCID
Answer: (c).SCID
Question 74. Which of the following disorder is caused due to the high serum level of urate?
  1.    Gout
  2.    Galectosemia
  3.    Cystic fibrosis
  4.    Maple syrup urine disease
 Discuss Question
Answer: Option A. -> Gout
Answer: (a).Gout
Question 75. Mark the INCORRECT statement about metabolic pathway.
  1.    They show the irreversible pathway
  2.    Each one of them has first committed step
  3.    They follow the only oxidative process
  4.    They are regulated
 Discuss Question
Answer: Option C. -> They follow the only oxidative process
Answer: (c).They follow the only oxidative process
Question 76. Which of the following is not an enzyme-catalyzed reaction in metabolism?
  1.    Isomerization and elimination
  2.    Internal rearrangement
  3.    Maillard reaction
  4.    Free radical reaction
 Discuss Question
Answer: Option C. -> Maillard reaction
Answer: (c).Maillard reaction
Question 77. Regulation of metabolic pathway is done by following ways except one, mark the one?
  1.    Substrate concentration
  2.    Allosteric regulation of enzymes
  3.    Availability of oxygen
  4.    Extracellular signals i.e. hormones or growth factors
 Discuss Question
Answer: Option C. -> Availability of oxygen
Answer: (c).Availability of oxygen
Question 78. Name the inhibition where end products of biosynthesis pathway inhibit the activity of the first enzyme?
  1.    Feedback inhibition
  2.    Feedback repression
  3.    Allosteric inhibition
  4.    Competitive inhibition
 Discuss Question
Answer: Option A. -> Feedback inhibition
Answer: (a).Feedback inhibition
Question 79. In which of the following phenomenon the end product act as co-repressor and repress the synthesis of metabolic enzymes?
  1.    Allosteric regulation
  2.    Feedback repression
  3.    Feedback inhibition
  4.    Regulation by phosphorylation
 Discuss Question
Answer: Option B. -> Feedback repression
Answer: (b).Feedback repression
Question 80. Which of these enzymes in glycolysis do not take part in an irreversible reaction?
  1.    Hexokinase
  2.    Phosphofructokinase
  3.    Pyruvate kinase
  4.    Glucokinase
 Discuss Question
Answer: Option D. -> Glucokinase
Answer: (d).Glucokinase

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