Question

question #10 of 10
the 4 major macro - molecules in cells are carbohydrate, protein, lipid and nucleic acid. which 2 of the macro - molecules have phosphorous as one of their primary elements?
protein and nucleic acid
carbohydrate and lipid
nucleic acid and lipid
lipid and protein

Explanation:

Nucleic acids (DNA and RNA) have a sugar - phosphate backbone, so phosphorus is a primary element. Some lipids, like phospholipids, also contain phosphorus in their structure. Carbohydrates and proteins do not typically have phosphorus as a primary element.

Answer:

Nucleic Acid and Lipid