Biology 9700 · AS & A Level · Mode of action of enzymes

Mode of action of enzymes — practice question

For polysaccharides to be fully digested, every glycosidic bond linking the monomers must be hydrolysed. Amylase catalyses the breaking of only $\alpha$-1,4 glycosidic bonds. To what extent can amylase digest molecules of amylose, amylopectin or glycogen?

  • Aamylose: + ; amylopectin: +++ ; glycogen: ++
  • Bamylose: + ; amylopectin: ++ ; glycogen: +++
  • Camylose: ++ ; amylopectin: + ; glycogen: +++
  • Damylose: +++ ; amylopectin: ++ ; glycogen: +

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