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MCQs

Total Questions : 88 | Page 1 of 9 pages
Question 1. The enzyme aconitase is responsible for ________________
  1.    polymerization
  2.    degradation
  3.    assembly
  4.    isomerization
 Discuss Question
Answer: Option D. -> isomerization
Answer: (d).isomerization
Question 2. For each molecule of glucose, how many times does the TCA cycle proceed?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 3. The contribution made by electric potential versus pH gradient to the proton motive force (Δp) is determined by which property of the mitochondrial membrane?
  1.    thickness
  2.    position in the cell
  3.    permeability
  4.    number of cristae
 Discuss Question
Answer: Option C. -> permeability
Answer: (c).permeability
Question 4. Proton motive force is the net sum of how many gradient components?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 5. The free energy released during electron transport is utilized to move protons from _____________ to inner membrane and cytosol.
  1.    extracellular environment
  2.    outer membrane
  3.    nucleus
  4.    matrix
 Discuss Question
Answer: Option D. -> matrix
Answer: (d).matrix
Question 6. Porins are present in ____________
  1.    Inner membrane
  2.    Outer membrane
  3.    Both inner and outer membrane
  4.    Intermembrane space
 Discuss Question
Answer: Option C. -> Both inner and outer membrane
Answer: (c).Both inner and outer membrane
Question 7. Human mitochondrial DNA encodes for _________
  1.    21 tRNAs
  2.    31 tRNAs
  3.    22 tRNA
  4.    24 tRNAs
 Discuss Question
Answer: Option C. -> 22 tRNA
Answer: (c).22 tRNA
Question 8. The mitochondrial RNA polymerase is made up of _____________
  1.    1 subunit
  2.    2 subunits
  3.    3 subunits
  4.    multiple subunits
 Discuss Question
Answer: Option A. -> 1 subunit
Answer: (a).1 subunit
Question 9. The mitochondrial DNA in humans encode for how many poplypeptides?
  1.    15
  2.    13
  3.    12
  4.    11
 Discuss Question
Answer: Option B. -> 13
Answer: (b).13
Question 10. Human mitochondrial DNA encodes for ____________
  1.    2 rRNAs
  2.    3 rRNAs
  3.    1 rRNA
  4.    4 rRNAs
 Discuss Question
Answer: Option A. -> 2 rRNAs
Answer: (a).2 rRNAs

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