Atoms or monomers that make up molecule for glucose, protein,lipids(including fats and oils).

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Glucose contains Carbon (C), Oxygen(O) and hydrogen(H) atoms.

Proteins contain amino acid as its monomer. There are 20 naturally occuring amino acids which contain a variety of atoms such as Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N) , Sulfur (S). Selectively, some amino acids contains Selenium(Se) which replaces S in cystein and Iron (Fe) which are sometimes present as binding atoms.

Lipids contain fatty acids and glycerol which are composed of Carbon (C),  Hydrogen (H) and Carbon (C) atoms


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