Proteins are an important nutrient because they provide the elements nitrogen and sulfur,which are not provided by dietary carbohydrates and lipids.

Question

Quizplus · Accepted Answer

Proteins contain amino acids, which are the only dietary source of nitrogen, essential for the synthesis of nucleotides, amino acids, and other biomolecules. Sulfur is also provided by some amino acids (e.g., methionine and cysteine), which is not found in carbohydrates and lipids.

Proteins Are an Important Nutrient Because They Provide the Elements