Pepsinogen I is secreted by chief cells, and pepsinogen II is secreted by pyloric glands. The secretion of pepsinogen is stimulated by vagal stimulation, gastrin, and histamine. Pepsinogen I is mainly found in the body of the stomach, where most acid is secreted. Pepsin is a proteolytic enzyme, whereas pepsinogen is a proenzyme. â¢ Pepsin is the active form of pepsinogen while pepsinogen is the inactive precursor of pepsin. â¢ Unlike the pepsin, pepsinogen is secreted by chief cells and pyloric glands.
A reefer ship is a refrigerated cargo ship; a type of ship typically used to transport perishable commodities which require temperature-controlled transportation, such as fruit, meat, fish, vegetables, dairy products and other foods.
Liquefied Gas carriers are specialized vessels that are used to transport Liquefied Natural Gas (LNG) and Liquefied Petroleum Gas (LPG) under controlled temperature and pressure. Today there are approximately 1100 such types of ships at sea, through out the world.as carrier are special types of ships that are used to carry highly inflammable gases under controlled temperature and pressure. Learn how this gas carrier is different in construction and design from other types of ships.