NEET BIOLOGY

Detailed explanation-1: -The four elements in all living organisms are carbon, oxygen, nitrogen, and hydrogen.

Detailed explanation-2: -They form the cells of an organism and perform the chemical reactions that facilitate life. All of these molecules, called biomolecules because they are part of living matter, contain carbon, which is the building block of life.

Detailed explanation-3: -Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates.

Detailed explanation-4: -Common elemental building blocks of biological molecules: Carbon, Oxygen, Hydrogen, Nitrogen and Phosphorus.

Detailed explanation-5: -The fundamental component for all of these macromolecules is carbon. The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone, ” of the macromolecules.