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.
Answers. Best Answer: Every enzyme has it own pH optimum. The amylase in the saliva has a pH optimum of 5.6. In the stomach, the pH is 1-2. So amylase stops working in the stomach. In the small intestine, a mixture of pancreatic enzymes work there: trypsin, chymotrypsin, lipase, amylase, etc.est Answer: Every enzyme has it own pH optimum. The amylase in the saliva has a pH optimum of 5.6. In the stomach, the pH is 1-2.