Answer:The macromolecule that can be easily identified by the nitrogen base found in its structure is nucleic acids, specifically deoxyribonucleic acid (DNA)
Step-by-step explanation:The macromolecule that can be easily identified by the nitrogen base found in its structure is nucleic acids, specifically deoxyribonucleic acid (DNA). DNA is made up of nitrogenous bases, including adenine (A), cytosine (C), guanine (G), and thymine (T), which form the "rings" of the DNA double helix. The specific sequence of these nitrogenous bases encodes the genetic information that controls the development and functioning of all living organisms.