BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Answer: Option D) proteins, starches, and fats.

Detailed explanation-2: -Organic building blocks are organic functionalized molecules: the basic components for organic synthesis. They are used for bottom-up modular assembly of molecular architectures, such as supra-molecular complexes, metal-organic frameworks, organic molecular constructs, and nanoparticles.

Detailed explanation-3: -The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain (see below).

Detailed explanation-4: -This leaves us with choice 4, indeed, proteins, starches and fats are organic compounds.

Detailed explanation-5: -A protein is an organic molecule composed of amino acids linked by peptide bonds.