Proteins normally do not contain which element?

Which element is present in proteins but not in carbohydrates?

Which of the following elements is present in protein?*1 pointoxygenNitrogencarbonOption 5hydrogen

Which of the following statements about proteins is false?

Which of the following biomolecules contain only the elements carbon, hydrogen, and oxygen*1 pointcarbohydrates and lipidsA and Bnucleic acids and carbohydrateslipids and proteins

Fats are composed of the elements carbon, hydrogen, and oxygen only. All proteins contain these three elements and the element ------(1)------.*Your answer