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  • Question
  • What is the consensus N-glycosylation site in a protein sequence?


  • Options
  • A. Asn-Xaa-(Ser or Thr)
  • B. (Ser or Thr)-Asn-Ala
  • C. Thr-(Asn or Gln)-Ala
  • D. None of these

  • Correct Answer
  • Asn-Xaa-(Ser or Thr) 


  • Carbohydrate problems


    Search Results


    • 1. An intermediate which inhibits the activity of fructose 1,6 diphos-phatase would inhibit

    • Options
    • A. glycolysis
    • B. pyrolysis
    • C. gluconeogenesis
    • D. none of these
    • Discuss
    • 2. What would be the molecular formula for a polymer made by linking ten glucose molecules together by dehydration synthesis, if molecular formula for glucose is C6H,206?

    • Options
    • A. C60H100O50
    • B. C60H120O60
    • C. C60H102O51
    • D. (C6H12O6)10
    • Discuss
    • 3. Metabolic reactions that break down complex molecules into smaller compounds, thereby releasing usable energy for the cell, are best described as

    • Options
    • A. biosynthetic
    • B. catabolic
    • C. catalytic
    • D. photosynthetic
    • Discuss
    • 4. Which of the following characteristic enzymes of gluconeogensis is not found in the cytosol?

    • Options
    • A. Pyruvate carboxlyase
    • B. Fructose-l,6-bisphosphatase
    • C. Both (a) and (b)
    • D. Glucose-6-phosphatase
    • Discuss
    • 5. Regulated metabolic pathways are

    • Options
    • A. compartmentalized in eukaryotes
    • B. usually regulated at the first step
    • C. committed after the first step
    • D. all of these
    • Discuss
    • 6. Patients suffering from Von Gierke's disease are unable to perform gluconeogeneis because they have a defective

    • Options
    • A. lactate dehydrogenase
    • B. glucose 6 phosphatase
    • C. pyruvate carboxylase
    • D. none of these
    • Discuss
    • 7. The multistep pathways of metabolism are efficient because they

    • Options
    • A. locate all of the enzymes for a pathway in the same place within the cell
    • B. use the same substrate for all of the enzymes in the pathway
    • C. use the same enzyme for all of the substrates in the pathway
    • D. spread the enzymes for a pathway into several different organelles
    • Discuss
    • 8. Aldolases splits fructose 1,6 biphosphate into

    • Options
    • A. glyceraldehyde 3- phosphate
    • B. glyceraldehyde 3- phosphate and dihydroxyacetone phosphate
    • C. dihydroxyacetone phosphate
    • D. none of the above
    • Discuss
    • 9. Glycogen degradation requires the enzyme namely

    • Options
    • A. glycogen phosphorylase and phosphoglucomutase
    • B. glycogen phosphorylase and glycogen-debranching enzyme
    • C. glycogen synthase and phosphorylase
    • D. none of the above
    • Discuss


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