Macromolecules question bio

choose the class of macromolecules whose members are known to exhibit enzymelike catalytic properties:

  1. rna
  2. glycoporteins
  3. lipoproteins
  4. polysaccharides

the answer is 1,2 and 3 only

can someone explain where they are used and why it is the answer
thank youu

  1. RNA - RNA is recognized as an active catalyst in biology, in self-splicing of group I and group II introns. Catalytic RNA (ribonucleic acid) are RNA molecules that have enzyme activity. eg: the hammerhead ribozyme which catalyzes ligation reactions at a specific site within an RNA molecule.
  2. Glycoproteins and lipoproteins: are essentially proteins with carbohydrates or lipids attached to it. Proteins can have enzyme properties.

You don’t need to know the details of specific examples as enzymes as I believe it’s pretty advanced but you know that enzymes are essentially proteins so 1,2,3 have protein components so they can show enzyme properties.

Hope this helps!


please did you say rna has protein or just glycoproteins and lipoproteins

RNA doesn’t contain protein in the structure but it is involved in protein synthesis: mRNA and tRNA. Hence it has enzyme like properties.

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