The correct answer is:
A. a system of folded membranes
The endoplasmic reticulum (ER) is an organelle that consists of a network of folded membranes and is involved in protein and lipid synthesis, among other functions.
Which of the following describes the structure of the endoplasmic reticulum?
A. a system of folded membranes
B. a tiny organelle that has no membrane
C. a rigid, protective layer found outside the cell membrane
D. an organelle surrounded by a double membrane and containing DNA
1 answer