LIFE SCIENCE

Detailed explanation-1: -• Three of the four classes of macromolecules-carbohydrates, proteins, and nucleic. acids-form chain-like molecules called polymers.

Detailed explanation-2: -Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.

Detailed explanation-3: -Nucleic acids are key macromolecules in the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).