Carbon, Hydrogen, Oxygen and Nitrogen are elements of what biomolecule?

The biomolecule that contains carbon, hydrogen, nitrogen and oxygen is protein.

Biomolecules are those molecules that are required for the body to function effectively. These molecules often contain carbon, hydrogen and a few trace elements.

Proteins are composed of amino acids which are linked to yield polypeptide chains. These amino acids that constitute proteins are composed of carbon, oxygen and hydrogen and nitrogen  atoms.

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Proteins

Explanation:

Biomolecule = a molecule produced by a living organism. Proteins are biomolecules made from the human body and consist of the elements carbon, hydrogen, nitrogen, and oxygen.

where is the diagram?

if you insert the diagram ill be able to you