Gastric acid gastric acid, verifying that acid played a crucial role in digestion. Gastric acid Gastric acid, gastric juice or stomach acid, is a digestive fluid formed in the stomach and is composed of hydrochloric acid (HCl), potassium chloride (KCl) and sodium chloride (NaCl). The acid plays a key role in digestion of proteins, by activating digestive enzymes, and making ingested proteins unravel so that digestive enzymes break down the long chains of amino acids. Gastric acid is produced by cells in the lining of the stomach, which are coupled in feedback systems to increase acid production when needed. Other cells in
Break Down (EP) Break Down (EP) Break Down is the debut Korean solo mini album of Kim Hyun-joong of South Korean boy band SS501. It was released on 7 June 2011 under KeyEast Entertainment. A Limited Edition was released on 23 June 2011, with a bonus DVD with music videos and behind-the-scene footages. The album was released in Taiwan by Warner Music Taiwan in two versions: Regular and Commemorate Editions. Kim's songs were produced by Steven Lee, who had composed SS501's hits "Love Like This" and "Love Ya". The title track "Break Down" is a high energy dance track featuring Double K. Another