Are all macromolecules are polymers?
Macro molecules are molecules which consist of more than 10K atoms. We all may be under the impression that all macromolecules are polymers. But no.
Polymers are large molecules with repeating units called monomers. So, polymers are macromolecules.
Now there are other large molecules such as Chlorophyll A and Chlorophyll B. But these do not have any repeating units. So, they are not polymers, but are still classified as macromolecules.
Conclusion:- All polymers are macromolecules but all macromolecules are not polymers.