The smooth endoplasmic reticulum
A) is most abundant in cells specialized for protein secretion.
B) gives rise to transport vesicles containing newly synthesized molecules wrapped in a layer of smooth ER membrane.
C) consists of stacks of relatively flattened sacs called cisternae.
D) has many ribosomes.
E) all of these answers.

Question

Quizplus · Accepted Answer

The smooth endoplasmic reticulum gives rise to transport vesicles containing newly synthesized molecules wrapped in a layer of smooth ER membrane.

Answer: D
 The smooth endoplasmic reticulum does not have ribosomes.

The Smooth Endoplasmic Reticulum