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Home Biochemistry Carbohydrate Comments

  • Question
  • In lysozyme catalysis, which of the following does not contribute?


  • Options
  • A. The abnormally high pKa of Glu35
  • B. The strained conformation of the D sugar
  • C. Formation of a covalent intermediate at Asp52
  • D. Formation of a covalent intermediate at Ser195

  • Correct Answer
  • Formation of a covalent intermediate at Ser195 


  • Carbohydrate problems


    Search Results


    • 1. Gluconeogenesis requires a higher amount of ATP equivalents as compared to that produced by glycolysis because

    • Options
    • A. gluconeogenesis releases energy as heat
    • B. glycolysis releases energy as heat
    • C. glycolysis occurs in the mitochondria while gluconeogenesis occurs in the cytosol
    • D. all of the above
    • Discuss
    • 2. Two major products of pentose phosphate pathway are

    • Options
    • A. nicotinamide adenine dinucleotide and ribose 5-phosphate
    • B. flavine adenine dinuclueotide and glucose 5-phosphate
    • C. FAD and CoA
    • D. NADPH and NAD
    • Discuss
    • 3. A common way that cells capture the energy released during the breakdown of large molecules is to add electrons to smaller, specialized molecules that can accept them. This process of electron acceptance is otherwise known as

    • Options
    • A. biosynthesis
    • B. metabolism
    • C. reduction
    • D. catalysis
    • Discuss
    • 4. Under aerobic condition pyruvate is converted by pyruvate dehydrogenase to

    • Options
    • A. phosphoenol pyruvate
    • B. acetyl CoA
    • C. lactate
    • D. glyceraldehyde 3 phosphate
    • Discuss
    • 5. Gluconeogenesis is the

    • Options
    • A. formation of glycogen
    • B. breakdown of glucose to pyruvate
    • C. breakdown of glycogen to glucose
    • D. synthesis of glucose from non-carbohydrate precursors
    • Discuss
    • 6. What is present in the stomach to prevent self-digestion?

    • Options
    • A. Mucus
    • B. acid
    • C. Enzymes
    • D. hormones
    • Discuss
    • 7. Storage polysaccharide made by animals is

    • Options
    • A. amylopectin
    • B. glycogen
    • C. cellulose
    • D. collagen
    • Discuss
    • 8. Cellulose fibers resemble with the protein structure in the form of

    • Options
    • A. ?-sheets
    • B. ?-helices
    • C. ?-turns
    • D. None of these
    • Discuss
    • 9. A catabolic intermediate which stimulates phosphofructokinase would stimulate

    • Options
    • A. gluconeogenesis
    • B. glycolysis
    • C. glycogen synthesis
    • D. none of these
    • Discuss
    • 10. During vigorous exercise, pyruvate produced by glycolysis is converted to

    • Options
    • A. acetate
    • B. lactate
    • C. monosodium phosphate
    • D. pyruvic acid
    • Discuss


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