Answer: A: It becomes inactive.
Explanation: Pepsin works best at a pH of 2. And as the stomach has a very acidic condition, pepsin works well. But in the small intestine, the pH is about 8, which is too high for pepsin to function. Therefore, pepsin gets denatured in the small intestine.
True.
After forming a hypothesis, or an explanation that would be experimented on, you would be <em>testing</em> it to see if it gives the results you were looking for.
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Hydrolysis of the ATP molecule removes the third phosphate group, creating ADP, a phosphate group, and releasing energy that can be used for a number of functions in various cells.
