Cells actively involved in secreting proteins would contain large numbers or quantities of
A)lysosomes.
B)peroxisomes.
C)granular (rough)endoplasmic reticulum.
D)agranular (smooth)endoplasmic reticulum.

Question

Quizplus · Accepted Answer

Granular (rough) endoplasmic reticulum (ER) is responsible for the synthesis and packaging of proteins that will be secreted from the cell. It contains ribosomes on its surface that help in protein synthesis. Therefore, cells actively involved in secreting proteins would have a large quantity of granular (rough) ER. Lysosomes contain digestive enzymes, peroxisomes are involved in lipid metabolism, and agranular (smooth) ER is involved in lipid synthesis and detoxification.

Cells Actively Involved in Secreting Proteins Would Contain Large Numbers