When examining an endocrine cell from a new species of mammal under the microscope you find that it contains an abundance of rough endoplasmic reticulum,a large Golgi apparatus,and secretory granules.Which of the following is most likely to be true about these cells?
A)It secretes a peptide/protein hormone.
B)It secretes its product by diffusion through the lipid bilayer of the plasma membrane.
C)It secretes by endocytosis.
D)Its hormone product is synthesized from cholesterol.
E)It secretes a hormone with a hydrophobic structure.

Question

Quizplus · Accepted Answer

The abundance of rough endoplasmic reticulum and large Golgi apparatus suggests that the cell is involved in synthesizing and processing proteins, which include peptide/protein hormones. The presence of secretory granules further indicates that the cell secretes its product through exocytosis. Therefore, option A is the most likely. Options B, C, D, and E are not supported by the given information.

When Examining an Endocrine Cell from a New Species of Mammal