a particle that makes up the basic unit of an element is an

elementary particles: Basic Constituents of Matter. Molecules are built up from the atom , which is the basic unit of any chemical element . The atom in turn is made from the proton , neutron , and electron . It turns out that protons and neutrons are made of varieties of a still smaller particle called the quark.

Explanation:

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

currents is the correct answer.