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.
USS Omaha Christened. The Navy's USS Omaha was christened Saturday morning in Mobile, Alabama. The 420-foot long ship is a Littoral Combat Ship, the type of vessel the U.S. Defense Secretary told naval officials earlier in the week they me be cutting back on. U.S. Secretary of the Navy Ray Mabus told reporters why the name âOmaha was chosen.