Question

why they called macromolecules​

Answer 1

Answer:

Carbohydrates, proteins and nucleic acids are found as long polymers. Due to their polymeric nature and large size, they are known as macromolecules.

Explanation:

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Answer 2

Answer:

Another name for a macromolecule is a polymer, which derives from the Greek prefix poly- to mean “many units.” In broken-down terms, a macromolecule is the product of many smaller molecular units.