Question

a certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (er). which of the following functions is this cell type most likely specialized to perform? a the production and secretion of steroids b the destruction of toxic materials produced in other cells of the organism c the synthesis of polysaccharides for energy storage d the production and secretion of proteins

Explanation:

Rough endoplasmic reticulum is associated with protein synthesis and secretion. It has ribosomes attached to its surface which are involved in making proteins. Steroid production is associated with smooth endoplasmic reticulum, destruction of toxins is a function of peroxisomes, and synthesis of polysaccharides for energy storage is related to processes in the cytoplasm or other organelles not primarily the rough ER.

Answer:

D. The production and secretion of proteins