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.
pH affect enzyme activity. . it leads to alteration in the shape of the enzyme.is known as the optimum pH. the pH level may also affect the charge properties and shape of the substrate.This is graphically illustrated in Figure 2.the point where the enzyme is most active.H affect enzyme activity. . it leads to alteration in the shape of the enzyme.is known as the optimum pH. the pH level may also affect the charge properties and shape of the substrate.