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.
REEFING AND UNREEFING. Slab reefing the mainsail is the subject of this article. Slab reefing, also known as jiffy reefing, is a process of temporarily removing sail area from the main by lowering the halyard and re-fastening the boom to the sail using reinforcements sewn to the sail at the reef tack and reef clew.