Amino acids are used in the human body to make proteins which help the body grow, repair body tissue and break down food. Amino acids help with muscle control, build muscle tissue and protect the body’s nervous system. They also increase the production of growth hormones in the body, such as testosterone.Continue Reading
Amino acids are organic compounds made of amine and carboxylic acid functional groups. The key elements of an amino acid include oxygen, hydrogen, carbon and nitrogen. The human body produces nonessential amino acids such as glutamic acid, alanine and aspartic acid, but it does not produce essential amino acids, which must be obtained from food. Essential amino acids include leucine, histidine, lysine, phenylalanine, valine, threonine and tryptophan.
Amino acids help eliminate excess fat stored in the blood stream, stimulate parts of the nervous system that control metabolism and energy production, and aid in the synthesis of molecules. For instance, tryptophan is a precursor of the neurotransmitter serotonin.
Amino acids deficiency causes weight loss, diarrhea, changes in hair or skin, low energy and lack of mental alertness. Diseases and conditions such as kwashiorkor, decreased blood protein levels, decreased muscle mass, drop in blood cell numbers, slow growth and reproductive disorders are all associated with low levels of amino acids in the body.Learn more about Biology
The digestion of proteins begins, as does all digestion, with the mechanical process of chewing food, and it ends with the absorption of the proteins' constituent amino acids by the cells of the body. About.com describes the process at length, ranging from mechanical to chemical digestion, and even lists the specific enzymes involved in the chemical digestion of proteins at various stages along the way.Full Answer >
Anabolism is a process in which the liver creates new proteins from digested nutrients, while catabolism involves the breaking down of proteins into essential amino acids. Both are vital to the body's metabolism and maintaining healthy cell function.Full Answer >
Protease enzymes break down proteins into peptides, while peptidase enzymes break down smaller pieces of proteins into amino acids. Pepsinogen is secreted by the gastric glands into the stomach, which is a highly acidic environment after a person eats.Full Answer >
Enzymes are a type of protein, and like other proteins, they are made by the translation of the genetic code into a particular sequence of amino acids by ribosomes. After the enzyme is created as a chain of amino acids, it folds into a particular shape and often binds to other compounds, known as cofactors, before it becomes fully functional. Enzymes are crucial to the operation of cellular mechanisms.Full Answer >