Pepsinogen is an example of a proenzyme. This means it is A. an ...

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Pepsinogen is an example of a proenzyme. This means it is
 
 A. an inactive form an enzyme.
  B. an enzyme needed for protein digestion.
  C. a protease.
  D. an enzyme that leads the way for a different enzyme to have activity.

Question 2

One of the first events that occurs in the stomach in response to the presence of food is the release of _____, a hormone that stimulates the stomach to produce gastric juices.
 
 A. cholecystokinin
  B. gastrin
  C. secretin
  D. insulin

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Answer to Question 1

A

Answer to Question 2

B

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