Which of the following mechanisms describes the way in which the structure labeled C leaves the absorptive cell?
A) simple diffusion
B) exocytosis
C) secondary active transport
D) exosmosis
E) facilitated diffusion v

Question

Which of the following mechanisms describes the way in which the structure labeled C leaves the absorptive cell? 
A) simple diffusion 
B) exocytosis 
C) secondary active transport 
D) exosmosis 
E) facilitated diffusion v

Quizplus · Accepted Answer

The structure labeled C is a protein, which is synthesized in the rough endoplasmic reticulum and packaged into vesicles that are transported to the Golgi apparatus for further processing. From there, the vesicles containing the protein can fuse with the plasma membrane via exocytosis, releasing the protein into the extracellular space. Therefore, B (exocytosis) is the correct answer.

Which of the Following Mechanisms Describes the Way in Which