HUMAN NUTRITION

Detailed explanation-1: -However, all proteins contain an element not found in carbohydrates and lipids is nitrogen.

Detailed explanation-2: -This view represents these molecules simply as “hydrated” carbon atom chains in which water molecules attach to each carbon atom, leading to the term “carbohydrates.” Although all carbohydrates contain carbon, hydrogen, and oxygen, there are some that also contain nitrogen, phosphorus, and/or sulfur.

Detailed explanation-3: -The common attributes of carbohydrates are that they contain only the elements carbon, hydrogen and oxygen, and that their combustion will yield carbon dioxide plus one or more molecules of Water.

Detailed explanation-4: -As carbohydrates do not contain nitrogen, while adenine does, the correct answer is nitrogen.