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MCQs

Total Questions : 211 | Page 6 of 22 pages
Question 51. Where the acyl-CoA formed in the cytosol is transported for oxidation?
  1.    Mitochondrial matrix
  2.    Microsomes
  3.    Endoplasmic reticulum
  4.    Remains in cytosol
 Discuss Question
Answer: Option A. -> Mitochondrial matrix
Answer: (a).Mitochondrial matrix
Question 52. A biological redox reaction always involves
  1.    an oxidizing agent
  2.    a gain of electrons
  3.    a reducing agent
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 53. FAD is reduced to FADH₂ during
  1.    electron transport phosphorylation
  2.    lactate fermentation
  3.    Krebs cycle
  4.    glycolysis
 Discuss Question
Answer: Option C. -> Krebs cycle
Answer: (c).Krebs cycle
Question 54. Coenzyme Q is involved in electron transport as
  1.    directly to O₂
  2.    a water-soluble electron donor
  3.    covalently attached cytochrome cofactor
  4.    a lipid-soluble electron carrier
 Discuss Question
Answer: Option D. -> a lipid-soluble electron carrier
Answer: (d).a lipid-soluble electron carrier
Question 55. During glycolysis, electrons removed from glucose are passed to
  1.    FAD
  2.    NAD+
  3.    acetyl CoA
  4.    pyruvic acid
 Discuss Question
Answer: Option B. -> NAD+
Answer: (b).NAD+
Question 56. How many human mitochondrial proteins are encoded in the mitochondrial genome and synthesized within mitochondria?
  1.    11
  2.    12
  3.    13
  4.    14
 Discuss Question
Answer: Option C. -> 13
Answer: (c).13
Question 57. Mitochondrial DNA is a
  1.    Simple, single stranded linear DNA molecule
  2.    Simple, single stranded circular DNA molecule
  3.    Simple, double stranded linear DNA molecule
  4.    Simple, double stranded circular DNA molecule
 Discuss Question
Answer: Option D. -> Simple, double stranded circular DNA molecule
Answer: (d).Simple, double stranded circular DNA molecule
Question 58. How many mitochondrial proteins are encoded in nuclear genes and imported into mitochondria after their synthesis?
  1.    600
  2.    700
  3.    800
  4.    900
 Discuss Question
Answer: Option D. -> 900
Answer: (d).900
Question 59. Oxysomes or F₀– F₁ particles occur on
  1.    Inner mitochondrial membrane
  2.    Chloroplast surface
  3.    Mitochondrial surface
  4.    Thylakoids
 Discuss Question
Answer: Option A. -> Inner mitochondrial membrane
Answer: (a).Inner mitochondrial membrane
Question 60. More than what proportion of mitochondrial proteins are coded by nuclear DNA?
  1.    95%
  2.    50%
  3.    10%
  4.    40%
 Discuss Question
Answer: Option A. -> 95%
Answer: (a).95%

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