Question

which of the following elements are most abundant in biomolecules? (choose 4) a carbon b iodine c nitrogen d hydrogen e fluorine f oxygen

Explanation:

Biomolecules are mainly composed of carbon, hydrogen, oxygen, and nitrogen. These elements form the backbone and functional groups of biomolecules like carbohydrates, proteins, lipids, and nucleic - acids. Iodine, fluorine are not among the most abundant elements in biomolecules.

Answer:

A. Carbon
C. Nitrogen
D. Hydrogen
F. Oxygen