Gastric acid network (called canaliculi) from which the hydrochloric acid is secreted into the lumen of the stomach. The pH of gastric acid is 1.5 to 3.5 in the human stomach lumen, the acidity being maintained by the proton pump H/K ATPase. The parietal cell releases bicarbonate into the bloodstream in the process, which causes a temporary rise of pH in the blood, known as an alkaline tide. The highly acidic environment in the stomach lumen causes proteins from food to lose their characteristic folded structure (or denature). This exposes the protein's peptide bonds. The gastric chief cells of the stomach secrete
When I Start To (Break It All Down) When I Start To (Break It All Down) "When I Start To (Break It All Down)" is a single by English synthpop duo Erasure, released as the lead single from their 2011 album "Tomorrow's World". The song was written by Andy Bell and Vince Clarke, whilst it was produced by electropop musician Frankmusik who produced the rest of the "Tomorrow's World" album. The song was released on 23 September 2011, and received its first UK airplay on BBC Radio 2's Ken Bruce show on 15 August. It was the first eligible single (discounting remixed versions of hit singles), since the