Question

Pepsin is produced by cells lining the stomach. It catalyzes reactions needed to digest certain proteins. After leaving the stomach, food enters the small intestine. The pH of the small intestine is around 7. What would most likely happen to pepsin enzymes that traveled with the food from the stomach to the small intestines?

Answer 1

Their effect is neutralised by basic liquid juices produced in the liver in gall bladder. This juice is also called bile juice

Answer 2

hi mate,

===>>Pepsin is secreted as pepsinogen in stomach and converted into active pepsin by HCl present in gastric juice. HCl and pepsin both could be corrosive on stomach lining: but to prevent that a thick layer of mucus keeps the stomach lining covered all the time.

===>>Stomach juice is secreted regularly during the meal time; hence if one skips a meal chances of damage to the stomach wall goes up. Action of pepsin on gut wall causes ulcer.

===>>Trypsin is secreted as inactive trypsinogen from pancreatic tissue. Once it reaches small intestine, it is converted in active trypsin by enterokinase enzyme.

===>>Trypsin acts in alkaline medium and it is prevented from taking any damaging action on intestinal lining of lumen due to presence of protective mucus layer on it.

i hope it helps you.