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MCQs

Total Questions : 127 | Page 7 of 13 pages
Question 61. Each reaction in a metabolic pathway is
  1.    catalyzed by a specific enzyme
  2.    irreversible
  3.    controlled by the end product
  4.    reversible
 Discuss Question
Answer: Option A. -> catalyzed by a specific enzyme
Question 62.  Fructose is metabolized by
  1.    fructose 1-phosphate pathway
  2.    fructose 6-phosphate pathway
  3.    glyceraldehyde 3-phosphate pathway
  4.    both (a) and (b)
 Discuss Question
Answer: Option D. -> both (a) and (b)
Question 63.  A common way that cells capture the energy released during the breakdown of large molecules is to add electrons to smaller, specialized molecules that can accept them. This process of electron acceptance is otherwise known as
  1.    biosynthesis
  2.    metabolism
  3.    reduction
  4.    catalysis
 Discuss Question
Answer: Option C. -> reduction
Question 64.  Humans are unable to digest
  1.    starch
  2.    complex carbohydrates
  3.    denatured proteins
  4.    cellulose
 Discuss Question
Answer: Option D. -> cellulose
Question 65.  How many ATP equivalents per mole of glucose input are required for gluconeogenesis?
  1.    2
  2.    6
  3.    8
  4.    4
 Discuss Question
Answer: Option B. -> 6
Question 66.  
Which of the following compounds is responsible for coordinated regulation of glucose and glycogen metabolism?
  1.    NAD+
  2.    Fructose 2,6 bisphosphate
  3.    Acetyl-CoA
  4.    Fructose 1,6 bisphosphate
 Discuss Question
Answer: Option B. -> Fructose 2,6 bisphosphate
Question 67.  Gluconeogenesis requires a higher amount of ATP equivalents as compared to that produced by glycolysis because
  1.    gluconeogenesis releases energy as heat
  2.    glycolysis releases energy as heat
  3.    glycolysis occurs in the mitochondria while gluconeogenesis occurs in the cytosol
  4.    all of the above
 Discuss Question
Answer: Option B. -> glycolysis releases energy as heat
Question 68.  Which of the following is carried out when cAMP functions as a second messenger?
  1.    Acts second in importance to AMP
  2.    Activates all cytosolic protein kinases
  3.    Activates the cAMP-dependent protein kinase
  4.    Acts outside the cell to influence cellular processe
 Discuss Question
Answer: Option C. -> Activates the cAMP-dependent protein kinase
Question 69.  The production or break down of __________ is often coupled with the metabolic reactions of biosynthesis and catabolism.
  1.    aspirin
  2.    DNA
  3.    ATP
  4.    CO2
 Discuss Question
Answer: Option C. -> ATP
Question 70. . The main site for gluconeogenesis is
  1.    kidney
  2.    liver
  3.    brain
  4.    muscle
 Discuss Question
Answer: Option B. -> liver

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