The pH of the highly acid stomach is changed to about 6 in the duodenum, then gradually decreases to about 7.4 in the terminal ileum of the small intestine. It drops to 5.7 in the caecum and gradually increases again, reaching a pH of 6.7 in the rectum.
Proteolytic enzymes, including trypsin and chymotrypsin break down proteins. Lipase breaks down triglycerides into free fatty acids. Amylase breaks down some carbohydrates (notably starch) into oligosaccharides. Brush border enzymes, most importantly dextrinase and glucoamylase further break down oligosaccharides. Other brush border enzymes in the intestines are maltase, sucrase and lactase.
The exocrine pancreas (the part of the pancreas that empties into the small intestine) is the major component for raising pH (decreasing free hydrogen ions). It contains bicarbonate ions that neutralize the acid. In addition there are ion pumps in the wall of the intestine. The Brunner's glands and pancreatic secretions.
I'm guessing the pH of the large intestines to be around 6
The Hydrochloric acid in the stomach usually has a pH of around 2 but can reach a pH of 1 or 3.
The pH of the large intestine is 5.5 - 7.0. For more detail you can go to wikipedia.com.
Pawinee, Thailand
Because it is the ideal pH for enzymes in intestine to work
6.5
The pH of the small intestine is roughly pH 8. It is slightly alkaline, as this is the alkalinity which best suits digestive enzymes.
The activity of intestinal enzymes would likely decrease or become inhibited if the pH of the small intestine remains at 2. This is because the optimal pH for most intestinal enzymes is around neutral or slightly alkaline (pH 6-8). At a pH of 2, the acidic environment may denature or inactivate the enzymes, reducing their ability to catalyze chemical reactions.
At the centre of a cell ---- ---- ----
The small intestine is the site of work of some digestive enzymes that are secreted there. It is not an ideal site for the continued work of enzymes from the stomach, as the pH is not hospitable for the work of those gastric enzymes.
The small intestine receives enzymes from the pancreas. It provides digestive enzymes for the breakdown of all three types of foods; carbohydrates, proteins, and fats.
no
The enzymes in the pancreas (which include several proteases, several nucleases, several elastases, pancreatic amylase, carboxypeptidase and steapsin) need to be of an alkaline pH (about pH8) to cancel out the highly acidic produce of the stomach. The pancreatic juices meet the bolus in the duodenum of the small intestine.
It's about 7.5, which means that it is slightly basic. The stomach is acidic, so not only does the basic pH of the small intestine allow the enzymes to function, but it also counteracts with the acidity of the stomach.
The pH of the small intestine is approxmiatly 8.
The enzymes of the stomach will be different from those of the small intestine. The presence of the bolus stimulates the small intestine to produce secretin, which in turn stimulates the liver, pancreas, and gall bladder to secrete various enzymes, whereas the proteases of the stomach are activated by the low pH.Pepsin, a protease and protein-digesting enzyme of the stomach, is released by chief cells as pepsinogen. The highly acidic chyme (pH: 1.5-2) clips off some of the pepsinogen molecule, exposing its active region. Pepsin could not be made from pepsinogen in the small intestine however, due to the bicarbonate ions that are released to neutralize the chyme dumped into the duodenum, creating a slightly basic solution.Similarly, the low pH of the stomach would immediately denature any proteins (enzymes) found in the rest of the body, like the small intestine. The enzymes used in the stomach are specialized for the extremely low pH, though other enzymes are not. Pepsinogen released into the small intestine could not function as an enzyme properly.
Because it is the ideal pH for enzymes in intestine to work
Digestive enzymes are made in the pancreas, not the small intestine. The majority of enzymes are made in the pancreas and the small intestine. These include the carbohydrases, lipases and proteases which break down all the major molecules. Enzymes are also secreted in the mouth and stomach, altough fewer than in the pancreas / intestine.