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

Mode of action of enzymes — practice question

Certain RNA molecules, known as ribozymes, are able to catalyse reactions in much the same way as protein enzymes. The majority of these ribozymes use other RNA molecules as their substrates and catalyse reactions that cleave particular sugar phosphate bonds in the substrate molecules. Which statements about these ribozymes are correct?

  • A1, 2 and 3
  • B1 and 2 only
  • C1 and 3 only
  • D2 and 3 only

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