Question

Explain the biological importance of proteins.

Answer 1

Hint: Protein is one of the essential nutrients in the human body. Proteins are also known as building blocks of the tissues. The proteins are of three types namely, membrane, globular, and fibrous.

Complete answer:
The protein molecules are made up of amino acids. They are a basic element in the living cells, and are coded by the genes. The body needs proteins for the maintenance and growth of the tissues. They play an important role in the biochemical reactions, taking place inside the body. Enzymes are made up of proteins. The structure of the enzymes, allows the reactant to catalyze with it for forming the useful product, at a faster pace of time. Some examples of the digestive enzymes are sucrose, and lactase. The body functions which depend on these proteins are muscle contraction, blood clotting, energy production, and digestion.

Some hormones are also made up of proteins that work as a chemical messenger. Hormones could be categorized into three categories, namely; protein and peptides, steroids, and amines. Fibrous proteins help in providing rigidity to the tissues. These proteins may include elastins, collagen, and keratin. The balance in the body fluids as well as pH is also regulated by the proteins. They store and transport the nutrients, and p\makes the immune system strong. Thus, proteins are of a biological importance.

Note: The protein deficiency could lead to several ailments such as kwashiorkor, mental retardation. The symptoms of kwashiorkor are edema of belly, fatty liver, flaky skin, failure to grow, inactivity, diarrhea, and apathy. Due to protein deficiency about 6 million deaths occur annually.