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ATP Synthesis and Fatty Acid Oxidation (Biochemistry) Question and Answers-Page first

ATP Synthesis and Fatty Acid Oxidation problems


  • 1. The oxidation of methanol (wood alcohol) in human retina tissue leads directly to the formation of

  • Options
  • A. formaldehyde
  • B. sugars
  • C. CO2
  • D. none of these
  • Discuss
  • 2. The oxidation of methanol (wood alcohol) in human retina tissue indirectly leads to

  • Options
  • A. pressure builds up
  • B. colour blindness
  • C. blindness
  • D. all of these
  • Discuss
  • 3. The transport of acyl-CoA for oxidation using a shuttle involves formation of the intermediate

  • Options
  • A. 3 acetyl-CoA
  • B. Acyl-coenzyme A
  • C. acyl-carnitine
  • D. None of these
  • Discuss
  • 4. Where the acyl-CoA formed in the cytosol is transported for oxidation?

  • Options
  • A. Mitochondrial matrix
  • B. Microsomes
  • C. Endoplasmic reticulum
  • D. Remains in cytosol
  • Discuss
  • 5. The maximum energy per gram on oxidization is yielded from

  • Options
  • A. fat
  • B. protein
  • C. glycogen
  • D. starch
  • Discuss
  • 6. Each cycle of ?-oxidation produces

  • Options
  • A. 1 FADH2, 1 NAD+, and 1 acetyl-CoA
  • B. 1 FADH2, 1 NADH and 1 acetyl-CoA
  • C. 1 FADH2, 1 NADH and 2 CO2 molecules
  • D. 1 FAD, 1 NAD+ and 2 CO2 molecules
  • Discuss
  • 7. Long-chain fatty acids are oxidized step-wise in one carbon units starting from the

  • Options
  • A. carboxyl end
  • B. aliphatic end
  • C. both (a) and (b)
  • D. none of these
  • Discuss
  • 8. Membrane potential and the proton gradient

  • Options
  • A. are both required to make ATP
  • B. are sufficient, separately, to make ATP from ADP + Pi;
  • C. reinforce one another when respiratory inhibitors are present
  • D. cancel one another when uncouplers are present
  • Discuss
  • 9. The three identical b subunits of the F1, complex during ATP synthesis have

  • Options
  • A. different affinities for ATP but not for ADP
  • B. different affinities for ADP but not for ATP
  • C. different affinities for ATP and for ADP
  • D. similar affinities for ADP and ATP
  • Discuss
  • 10. How many molecules of acetyl-CoA are produced in oxidation of palmitic acid (C16), which involves seven rounds of oxidation?

  • Options
  • A. 6
  • B. 7
  • C. 8
  • D. 9
  • Discuss

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