Macromolecules question bio

Practice Question Solving
1

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

2
  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!

3

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

4

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