In the process of digestion, the release of the hormone gastrin ...

[fagboi]

In the process of digestion, the release of the hormone gastrin is caused by the:
 A) presence of food in the stomach.
  B) secretion of saliva in the mouth.
  C) mechanical digestion of proteins in the mouth.
  D) secretion of mucus and pepsinogen in the stomach.

Question 2

__________is an example of an essential amino acid.
 A) Alanine
  B) Proline
  C) Glutamine
  D) Valine

[amandanbreshears]

Answer to Question 1

A

Answer to Question 2

D