In examining a cell using the electron microscope,you see a structure that is composed of two membranes,contains numerous pores,and appears to be connected to a network of membrane-enclosed compartments.The structure you are observing is most likely the
A) Golgi apparatus.
B) rough endoplasmic reticulum.
C) nuclear envelope.
D) mitochondrion.
E) smooth ER.

Question

Quizplus · Accepted Answer

The structure described fits the characteristics of the nuclear envelope, which is composed of two membranes and contains pores for the transport of molecules between the nucleus and the cytoplasm. The reference to a network of membrane-enclosed compartments is also consistent with the fact that the nucleus is often surrounded by endoplasmic reticulum. The other organelles listed do not have the same characteristics described.

In Examining a Cell Using the Electron Microscope,you See a Structure