Question

multiple - choice question
which macromolecules contain nitrogen (n)?
carbohydrates and lipids
protein and nucleic acids
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Explanation:

• Carbohydrates have the general formula \(C_x(H_2O)_y\), so they contain carbon (\(C\)), hydrogen (\(H\)), and oxygen (\(O\)) but no nitrogen.
• Lipids mainly consist of carbon (\(C\)), hydrogen (\(H\)), and oxygen (\(O\)). Some complex lipids may have other elements, but nitrogen is not a common component.
• Proteins are made up of amino acids. Amino acids have an amino group (\(-NH_2\)), so proteins contain nitrogen (\(N\)).
• Nucleic acids (DNA and RNA) have nitrogen - containing bases (adenine, guanine, cytosine, thymine (in DNA), and uracil (in RNA)).

Answer:

Protein and Nucleic Acids