Ritchie Valens. Richard Steven Valenzuela (May 13, 1941 â February 3, 1959), known as Ritchie Valens, was an American singer, songwriter, and guitarist. A rock & roll pioneer and a forefather of the Chicano rock movement, Valens' recording career lasted eight months, as it abruptly ended when he died in a plane crash.
Why do enzymes in our stomach work best at a pH of 7? Actually the pH of the stomach very acid relative to pH 7 (between pH 1-4). An acidic stomach is optimal for the breaking of hydrogen bonds that makes up the complex compoundsâ¦ in the food we ingest, like proteins.
The optimal pH for lactase performance is around 6, but lactase can function in an acidic environment ranging between a pH of 2 to 7, which corresponds to the typical pH of the human small intestine.actase functions best between roughly 70 and 120 degrees Fahrenheit, or somewhere near or just above room temperature, with its function optimized at around 115 degrees Fahrenheit.