An Enzyme Is Active in the Stomach of an Animal

Multiple Choice

An enzyme is active in the stomach of an animal, but quickly loses its activity when it leaves the stomach. This example illustrates that enzymes are

A) specific to the organs in which they are produced.
B) inactivated by inhibitors in the small intestine.
C) sensitive to changes in pH.
D) inactivated by movement.
E) consumed by the quantities of substrate in the small intestine.