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Home Biochemistry ATP Synthesis and Fatty Acid Oxidation See What Others Are Saying!
  • Question
  • 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

  • Correct Answer
  • formaldehyde 


  • More questions

    • 1. DiGeorge's syndrome is characterized by the lack of a thymus The mouse model closest to this human disease would be a

    • Options
    • A. knock-out mouse for RAG-1 and RAG-2
    • B. knock-out mouse for a thymus
    • C. nude mouse
    • D. recombinant mouse for CD3
    • Discuss
    • 2. Which amino acids would most likely reside in the membrane-anchoring domain of a membrane embedded protein?

    • Options
    • A. Isoleucine, valine and phenylalanine
    • B. Phenylalanine, valine, and aspartate
    • C. Leucine, threonine, and lysine
    • D. Lysine, arginine and histidine
    • Discuss
    • 3. Chronic granulomatous disease results from a failure to perform oxidative burst. This deficiency would be most likely to interfere with

    • Options
    • A. CTL killing of viruses
    • B. dendritic cell activation to become a mature APC
    • C. infected cell processing of virus peptides
    • D. macrophage intracellular killing of bacteria
    • Discuss
    • 4. What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located?

    • Options
    • A. Insulin; many different cell types that use glucose for fuel
    • B. Insulin; beta cells of the pancreas
    • C. PDGF; the blood
    • D. NGF; the nerves involved in simple reflexes
    • Discuss
    • 5. In DNA double helix, the two DNA chains are held together by

    • Options
    • A. covalent bonds between the pair of bases
    • B. hydrogen bonds between the pair of bases
    • C. ionic bonds between the pair of bases
    • D. none of the above
    • Discuss
    • 6. A human cDNA library

    • Options
    • A. contains DNA for specific human proteins
    • B. contains DNA for virtually all of the human proteins in vectors
    • C. cannot be used to obtain human genes because it would be radioactive
    • D. none of the above
    • Discuss
    • 7. Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?

    • Options
    • A. Because other body tissues use a different signaling molecule
    • B. Because nitric oxide cannot cross cell membranes and enter the blood
    • C. Because nitric oxide breaks down quickly and thus cannot travel far
    • D. None of the above
    • Discuss
    • 8. Which of the following is not the hydrophobic and aromatic amino acid?

    • Options
    • A. Phenylalanine
    • B. Tyrosine
    • C. Tryptophan
    • D. None of these
    • Discuss
    • 9. Cholesterolemia means

    • Options
    • A. lack of functional LDL receptors
    • B. lack of functional HDL receptor
    • C. high sensitivity to fatty food intake
    • D. none of the above
    • Discuss
    • 10. The E.coli pyruvic acid dehydrogenase complex is reported to

    • Options
    • A. decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2
    • B. Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2
    • C. retard the reduction of pyruvic acid to acetyl Co A and CO2
    • D. Catalyze the reduction of pyruvic acid to acetyl Co A and CO2
    • Discuss


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