Biology 9700 · AS & A Level · Carbohydrates and lipids

Carbohydrates and lipids — practice question

For polysaccharides to be fully hydrolysed, every glycosidic bond joining the monomers must be broken. Enzyme X hydrolyses only $\alpha$-1,4 glycosidic bonds. Which row indicates how far enzyme X is able to hydrolyse glycogen and amylose molecules?

  • Aglycogen: +, amylose: ++
  • Bglycogen: ++, amylose: +
  • Cglycogen: ++, amylose: -
  • Dglycogen: -, amylose: +

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