Proteins: The importance of proteins is that it helps carry oxygen, builds cardiac muscle, and its required for the function of the body's tissues and organs. An example of a protein is a messenger protein. A messenger protein, like hormones, transmit signals between cells, tissues, and organs.
Fats: The importance of fats is that it helps to fuel your body, helps absorb vitamin, and it provides the body with maximum energy. Fats are the most commonly misunderstood macronutrient. Fats are important because they strengthen our immune system, help our liver and lungs, and help absorb calcium for stronger bones.
Carbohydrates: The importance of carbohydrates is that it helps build energy. (ATP) Carbohydrates are sugars and the most important sugar of the body is glucose. Our bodies need glucose in certain tissues or cells in order to function properly. Carbohydrates help the body absorb the sugars for cellular function.
http://www.articlesbase.com/
http://www.weightawareness.com
http://www.diet-and-health.net/
http://ghr.nlm.nih.gov/handbook/howgeneswork/protein
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