are functions of protein in the body
Photo Credit gbh007/iStock/Getty Images. Proteins are compounds in your body made up of amino acids, which contain carbon, oxygen, hydrogen and nitrogen. While protein can provide your body with energy because it has 4 calories per gram, this is not one of its primary functions. The proteins in your body, which come from the foods you eat, play six primary physiological roles. Protein sources:  Amino acids are the building blocks of protein and are found in a variety of foods. Meat, milk, cheese, and egg are complete proteins that have all the essential amino acids. Other sources of protein include whole grains, rice, corn, beans, legumes, oatmeal, peas, and peanut butter. Back to Top Function. Every cell in the human body contains protein. It is a major part of the skin, muscles, organs, and glands. Protein is also found in all body fluids, except bile and urine. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development during childhood, adolescence, and pregnancy. 1 Examples include ovalbumin and casein. 2  Ovalbumin is found in egg whites and casein is a milk-based protein. 3  Transport Proteins-are carrier proteins which move molecules from one place to another around the body. 4  Examples include hemoglobin and cytochromes. Amino acids are found in animal sources such as meats, milk, fish, and eggs, as well as in plant sources such as soy, beans, legumes, nut butters, and some grains (such as wheat germ). You do not need to eat animal products to get all the protein you need in your diet. Protein function:  Protein should account for 10% to 20% of the calories consumed each day. Protein is essential to the structure of red blood cells, for the proper functioning of antibodies resisting infection, for the regulation of enzymes and hormones, for growth, and for the repair of body tissue. Protein sources: Protein Synthesis. Proteins are synthesized in the body through a process called translation. Translation occurs in the cytoplasm and involves the translation of genetic codes, assembled during DNA transcription, into proteins. Proteins are very important molecules in our cells. They are involved in virtually all cell functions. Each protein within the body has a specific function. Some proteins are involved in structural support, while others are involved in bodily movement, or in defense against germs. Proteins vary in structure as well as function. Transportation. Some proteins in your body help transport various substances throughout your blood. A protein called hemoglobin, which is found in your red blood cells, brings oxygen to your tissues and carbon dioxide to your lungs. Hormones. Protein is involved in the creation of some hormones. These substances help control body functions that involve the interaction of several organs. Insulin, a small protein, is an example of a hormone that regulates blood sugar. It involves the interaction of organs such as the pancreas and the liver.
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