The following graph shows the rate of reaction for two different enzymes: One is pepsin, a...

The following graph shows the rate of reaction for two different enzymes: One is pepsin, a digestive enzyme found in the stomach; the other is trypsin, a digestive enzyme found in the intestine. As you may know, the stomach secretes digestive juices containing hydrochloric acid. Which curve belongs to which enzyme?

A lysosome, a digestive organelle in a cell, has an internal pH of around 4.5. Draw a curve on the graph that you would predict for a lysosomal enzyme, labeling its optimal pH.