Nucleic Acids: stores all the genetic information of the cell, DNA functions as the molecule that carries on the genetic information from parent to offspring.
Proteins: The body uses protein to build and repair tissues. It's also used to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood.
Carbohydrates: all about energy and are found in foods like fruits, vegetables, breads, pasta, and dairy products. Your body makes glucose with these foods which is your body's main energy source.
Lipids: a source and store of energy. an important part of the membrane surrounding every body cell. The basic building blocks from which several hormones and bile acids are made.