Further fat digestion happens in the small intestine with the addition of pancreatic lipase. Gastric lipase (вЂњlipвЂќ means fat and вЂњaseвЂќ means breakdown) is secreted by the chief cells to begin fat digestion in your stomach by hydrolyzing (вЂњhydroвЂќ means water and вЂњlyzingвЂќ means breaking apart so the breaking apart of a molecule using water) fat molecules into fatty acid chains. Interestingly, rennin is the active ingredient in rennet which is used the cheese production compelling some vegetarians into eating cheese without rennet. People who lack intrinsic factor, cannot absorb vitamin B-12 and suffer from pernicious anemia.Д¬hymosin, or rennin, is secreted by the chief cells in your stomach wall and is responsible for the breakdown of a specific peptide bond: phenylalanine and methionine, through a complicated chemical process that I wonвЂ™t detail here. B-12 is vital for your red blood cells to carry oxygen. Intrinsic factor cannot do its job in the acidic environment of your stomach it works best in a pH of 7 вЂ“ close to water вЂ“ but is used later in your ileum to absorb vitamin B-12 into your circulatory system after bile from your gallbladder has neutralized the acidic chyme (what your partially digested food is called when it enters your small intestine). Parietal cells in your stomach wall also secrete intrinsic factor a substance whose only job вЂ“ as far as scientists know вЂ“ is to facilitate the absorption of vitamin B-12. It is important to note there is a layer of mucus protecting your stomach from being chemically broken down by pepsin and HCl. Your small intestine absorbs amino acids into your circulatory system for distribution to the rest of your body. Peptide chains are made up of amino acids. Pepsin begins protein digestion by breaking it down into peptide chains. HCl, chemically changes pepsinogen into pepsin and is essential because pepsin doesnвЂ™t function in an environment with a pH greater than 5. Pepsinogen is released from chief cells in your stomach wall. Another is to convert pepsinogen into pepsin. One, is to kill bacteria or other potentially dangerous pathogens you may have unknowingly ingested with your food. If your esophageal sphincter basically the lid to your stomach isnвЂ™t closed properly, HCl will creep into your esophagus resulting in heartburn. Parietal cells in the wall of the stomach secrete hydrochloric acid (HCl). Your stomach is an acidic environment with a low pH of between 1 and 3. The stomach receives chewed food and continues to mechanically and chemically break it down into smaller pieces, creating more surface area for your small intestine to absorb nutrients. Your stomach is located at the end of your esophagus and is the terminus for swallowed food and drink.

Does the stomach absorb water