There are many reactions, like Oxidation and Reduction
The answer is An object is in motion if it changes position relative to a reference point. You assume that the reference point is stationary, or not moving.
I wonder what sort of stuff happens up there that nobody is aware of. All the different kinds of possibilities. And if there is life, then what would they be doing and how are their ways of life?
Answer: It becomes inactivated
Explanation:
Since enzymes are proteinous in nature, they perform best at a particular physiological temperature, pH and location.
So, once pepsin gets transferred to duodenum (where trypsin) is located, it becomes inactivated because it functions best in the acidic medium of gastric gland, whereas pancreas has an alkaline medium.
Thus, alkaline pH of the duodenum will coagulate and inactivate pepsin.