What is the difference between proteins and carbohydrates and fats

Proteins are large molecules composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides.

Carbohydrates are any of various neutral compounds of carbon, hydrogen, and oxygen.

Fat is a fuel source for the body, fat is the major storage form of energy in the body.

Carbohydrates, proteins, and fats are called the “macronutrients.” ... Each source of protein contains different amounts of fat and or carbohydrate in addition to containing protein. Fats come from the oils in vegetables, nuts, seeds, and from the fat in animals. Fats are needed in our diet for several reasons