Question

The characteristic functional groups of a protein are _____.

Answer 1

Answer:

$\boxed{\text{amide groups}}$

Explanation:

A protein is a long chain of amino acids linked together by amide groups.

The general structure is

$\rm \left[-NHCHR-\underbrace{\hbox{CO-NH}}_{\hbox{amide group}}-CHRCO-\right]_{n}$