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MCQs

Total Questions : 127 | Page 4 of 13 pages
Question 31. Hexokinase activity in glycolysis is inhibited by
  1.    fructose 6-phosphate
  2.    phosphofructokinase
  3.    glucose 6- phosphate
  4.    fructose 1,6 biphosphate
 Discuss Question
Answer: Option C. -> glucose 6- phosphate
Question 32. Which of the following is not a disaccharide?
  1.    Amylose
  2.    Lactose
  3.    None of these
  4.    Cellobiose
 Discuss Question
Answer: Option A. -> Amylose
Question 33. The sugar which forms major component of nucleic acids is
  1.    maltose
  2.    mannose
  3.    ribose
  4.    galactose
 Discuss Question
Answer: Option C. -> ribose
Question 34. The ultimate source of energy that sustains living systems is
  1.    glucose
  2.    oxygen
  3.    sunlight
  4.    carbon dioxide
 Discuss Question
Answer: Option C. -> sunlight
Question 35. Under aerobic condition pyruvate is converted by pyruvate dehydrogenase to
  1.    phosphoenol pyruvate
  2.    lactate
  3.    glyceraldehyde 3 phosphate
  4.    acetyl CoA
 Discuss Question
Answer: Option D. -> acetyl CoA
Question 36. Citric acid accumulation would
  1.    inhibit phosphofructokinase activity
  2.    stimulate fructose 1,6 diphosphatase activity
  3.    stimulate phosphofructokinase activity
  4.    both (b) and (c)
 Discuss Question
Answer: Option D. -> both (b) and (c)
Question 37. Which of the following is not involved in the biosynthesis of DNA?
  1.    Mononucleotides
  2.    Carbonic anhydrase
  3.    Enzymes
  4.    Energy from ATP
 Discuss Question
Answer: Option B. -> Carbonic anhydrase
Question 38. What is present in the stomach to prevent self-digestion?
  1.    Enzymes
  2.    acid
  3.    hormones
  4.    Mucus
 Discuss Question
Answer: Option D. -> Mucus
Question 39. Insulin
  1.    inhibits gluconeogenesis and glycolysis
  2.    stimulates gluconeogenesis and glycolysis
  3.    stimulates gluconeogenesis and inhibits glycolysis
  4.    inhibits gluconeogenesis and stimulates glycolysis
 Discuss Question
Answer: Option D. -> inhibits gluconeogenesis and stimulates glycolysis
Question 40. Which of the following would be considered a part of metabolism?
  1.    All of the above
  2.    Catabolic pathways that break down complex carbohydrates
  3.    The capture of light energy for use in making glucose
  4.    Biosynthetic pathways that build DNA
 Discuss Question
Answer: Option A. -> All of the above

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