Question

All biomolecules are made up of the elements

carbon, hydrogen, nitrogen, and oxygen.
carbon, hydrogen,oxygen and sulfur
carbon, hydrogen,nitrogen,oxygen and sulfur
carbon, hydrogen,and oxygen.

Answer 1

All biomolecules are primarily made up of the elements **carbon, hydrogen, nitrogen, oxygen, and sometimes sulfur and phosphorus**.

The most common combinations you mentioned can be summarized as follows:

1. **Carbohydrates**: Mainly composed of carbon, hydrogen, and oxygen.
2. **Proteins**: Made up of amino acids, which contain carbon, hydrogen, nitrogen, and oxygen, and sometimes sulfur (in some amino acids).
3. **Nucleic Acids**: Composed of nucleotides, which contain carbon, hydrogen, nitrogen, oxygen, and phosphorus.
4. **Lipids**: Generally consist of carbon, hydrogen, and oxygen, but not in a specific ratio like carbohydrates.

Therefore, the most comprehensive answer would be **carbon, hydrogen, nitrogen, oxygen, and sulfur (and phosphorus for nucleic acids)**.