LIFE SCIENCE

Detailed explanation-1: -Proteins, carbohydrates and lipids are made from three basic molecules: carbon, hydrogen and oxygen. However, all proteins contain an element not found in carbohydrates and lipids is nitrogen. Nitrogen which is present in all amino acids (the building blocks that make up the protein chains).

Detailed explanation-2: -Proteins contain the elements carbon, hydrogen, and oxygen just as carbohydrates and lipids do, but proteins are the only macronutrient that contains nitrogen.

Detailed explanation-3: -Proteins are one of the primary constituents of living matter. They consist of long chains of amino acids, which are bonded together by peptide linkages and thus called polypeptides. There are about 20 amino acids, and the atoms most prevalent in these are carbon, hydrogen, oxygen, nitrogen, and sulfur.

Detailed explanation-4: –does not exist since nitrogen intake always equals nitrogen output. occurs when the body is growing. The chemical element that is found in protein and that is not found in carbohydrate or lipid is:-hydrogen.

Detailed explanation-5: -Nitrogen is found in proteins but not in carbohydrates and lipids.