Section: Biology

8) A feature of amino acids not found in carbohydrates is the presence of

1. phosphorous
2. nitrogen
3. hydrogen
4. oxygen
5. carbon

Amino acids contain carbon, hydrogen, oxygen, and nitrogen. Carbohydrates only contain carbon, hydrogen and oxygen.

Some may think phosphorus should be selected; however, it is rare that amino acids contain this element and this is not what is used to chemically differentiate between amino acids and carbohydrates.