Friday, May 20, 2011. Managing eczema on your scalp. Scalp eczema doesnât get much press, but a lot of us live with the problem every day. Me, for example: I own virtually no dark-colored tops, because a snow of skin flakes shows up within seconds.
Trypsin is secreted into the duodenum, where it acts to hydrolyse peptides into their smaller building blocks, namely amino acids (these peptides are the result of the enzyme pepsin breaking down the proteins in the stomach).
This is shown in this diagram of a molecule of the enzyme trypsin, with a short length of protein being digested in its active site. The amino acids around the active site attach to the substrate molecule and hold it in position while the reaction takes place. This makes the enzyme specific for one reaction only, as other molecules won't fit into the active site â their shape is wrong. Many enzymes need cofactors (or coenzymes) to work properly.