Question

Why all polymers are macromolecules but all macromolecules are not polymers. [2 marks]

Answer 1

• The polymers are also called as macromolecules because of their big size. A polymer always consists of thousands of repeating monomers units.
• However a macromolecule is a giant molecule which may or may not contain monomer units. [1 mark]

For example chlorophyll is a macromolecule but it is not a polymer as it does not contains monomer whereas polythene is a polymer as well as macromolecules as it contains large number of repeating monomers. Thus all the polymers are macromolecules but reverse is not true. [ 1 mark]