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MCQs

Total Questions : 211 | Page 16 of 22 pages
Question 151. NADP is a cofactor used in
  1.    Catabolic reactions
  2.    Anabolic reactions
  3.    Elimination reaction
  4.    Redox reactions
 Discuss Question
Answer: Option B. -> Anabolic reactions
Answer: (b).Anabolic reactions
Question 152. NADP⁺ in its reduced form is
  1.    NAD
  2.    NADH
  3.    NADPH
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> NADPH
Answer: (c).NADPH
Question 153. What is the proportion of ATP produced by oxidative phosphorylation?
  1.    60%
  2.    70%
  3.    80%
  4.    90%
 Discuss Question
Answer: Option A. -> 60%
Answer: (a).60%
Question 154. Products of glucose oxidation essential for oxidative phosphorylation are
  1.    Pyruvate
  2.    Acetyl co-A
  3.    NADPH and ATP
  4.    NADH and FADH₂
 Discuss Question
Answer: Option D. -> NADH and FADH₂
Answer: (d).NADH and FADH₂
Question 155. The effect of increased levels of hydrogen ions in the inter-membrane space of the mitochondria is
  1.    Increase ATP production
  2.    Decreased levels of oxidative phosphorylation
  3.    Increased levels of water in inter-membrane space
  4.    Decreased levels of chemiosmosis
 Discuss Question
Answer: Option A. -> Increase ATP production
Answer: (a).Increase ATP production
Question 156. The size of human mitochondrial DNA is
  1.    16kb
  2.    200kb
  3.    2500kb
  4.    100kb
 Discuss Question
Answer: Option A. -> 16kb
Answer: (a).16kb
Question 157. The size of plant mitochondrial DNA is
  1.    16kb
  2.    200-2500kb
  3.    100- 2550kb
  4.    100-2500kb
 Discuss Question
Answer: Option B. -> 200-2500kb
Answer: (b).200-2500kb
Question 158. Typically how many copies of DNA is/are there in each mitochondrion?
  1.    1
  2.    11
  3.    10
  4.    12
 Discuss Question
Answer: Option C. -> 10
Answer: (c).10
Question 159. The mechanism of action of cyanide, a mitochondrial toxin, is by inhibiting
  1.    ATP synthase
  2.    Succinate dehydrogenase
  3.    Cytochrome c oxidase
  4.    NADH dehydrogenase
 Discuss Question
Answer: Option C. -> Cytochrome c oxidase
Answer: (c).Cytochrome c oxidase
Question 160. Mitochondrial DNA is one of the best marker tools for population biologists and evolutionary biologists because
  1.    Absence of genetic recombination in mt-DNA
  2.    Mitochondrial genes are specific to mt-DNA
  3.    It can be easily isolated
  4.    It undergoes spontaneous mutation
 Discuss Question
Answer: Option A. -> Absence of genetic recombination in mt-DNA
Answer: (a).Absence of genetic recombination in mt-DNA

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