Certain cells that line the stomach synthesize a digestive enzyme and secrete it into the stomach.This enzyme is a protein.Which of the following processes could be responsible for its secretion?
A) endocytosis
B) exocytosis
C) phagocytosis
D) passive transport

Question

Quizplus · Accepted Answer

Exocytosis is the process by which cells secrete proteins out of the cell. The digestive enzyme synthesized by the cells lining the stomach is a protein, and therefore, exocytosis is the most likely process by which it is secreted into the stomach. Endocytosis and phagocytosis are processes by which cells take in materials, not secrete them. Passive transport does not involve the active movement of proteins out of the cell.

Certain Cells That Line the Stomach Synthesize a Digestive Enzyme