Amino Acids are a type of organic compound that can combine to from proteins. Foods with good Amino Acids include meat, eggs, tofu, soy and dairy. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen.
"a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane."