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MCQs

Total Questions : 127 | Page 1 of 13 pages
Question 1. Which of the following compounds is responsible for coordinated regulation of glucose and glycogen metabolism?
  1.    NAD+
  2.    Fructose 2,6 bisphosphate
  3.    Fructose 1,6 bisphosphate
  4.    Acetyl-CoA
 Discuss Question
Answer: Option B. -> Fructose 2,6 bisphosphate
Question 2. 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 3. 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.    reduction
  2.    metabolism
  3.    catalysis
  4.    biosynthesis
 Discuss Question
Answer: Option A. -> reduction
Question 4. Humans are unable to digest
  1.    cellulose
  2.    denatured proteins
  3.    complex carbohydrates
  4.    starch
 Discuss Question
Answer: Option A. -> cellulose
Question 5. Fructose is metabolized by
  1.    both (a) and (b)
  2.    glyceraldehyde 3-phosphate pathway
  3.    fructose 6-phosphate pathway
  4.    fructose 1-phosphate pathway
 Discuss Question
Answer: Option A. -> both (a) and (b)
Question 6. Gluconeogenesis requires a higher amount of ATP equivalents as compared to that produced by glycolysis because
  1.    glycolysis occurs in the mitochondria while gluconeogenesis occurs in the cytosol
  2.    gluconeogenesis releases energy as heat
  3.    All of these
  4.    glycolysis releases energy as heat
 Discuss Question
Answer: Option D. -> glycolysis releases energy as heat
Question 7. Which of the following is carried out when cAMP functions as a second messenger?
  1.    Activates all cytosolic protein kinases
  2.    Acts outside the cell to influence cellular processes
  3.    Acts second in importance to AMP
  4.    Activates the cAMP-dependent protein kinase
 Discuss Question
Answer: Option D. -> Activates the cAMP-dependent protein kinase
Question 8. The main site for gluconeogenesis is
  1.    liver
  2.    muscle
  3.    kidney
  4.    brain
 Discuss Question
Answer: Option A. -> liver
Question 9. The production or break down of __________ is often coupled with the metabolic reactions of biosynthesis and catabolism.
  1.    DNA
  2.    CO2
  3.    ATP
  4.    aspirin
 Discuss Question
Answer: Option C. -> ATP
Question 10. The cells dependent solely on glucose as an energy source are
  1.    brain cells
  2.    liver cells
  3.    muscle cells
  4.    kidney cells
 Discuss Question
Answer: Option A. -> brain cells

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