The enzyme chymotrypsin hydrolyzes proteins. The hydrolysis reaction cannot proceed without this hydrogen bond. Briefly explain how this hydrogen bond assists the amide hydrolysis reaction. This hydrogen bond serves two purposes. Questions 8 - 10 refer to the following.
Drugs are very specific for a particular disease state.
Very briefly explain the molecular events involving cimetidine and the H 2 receptor that lead to blockage of gastric acid secretion. A sketch that clearly explains this concept may be used instead of a written explanation. In this case, it sends a message to the stomach to produce gastric acid. Cimetidine is an H 2 receptor antagonist. Cimetidine binds to the H 2 receptor more strongly than does histamine, but does not trigger the release of gastric acid.