​Provides passages through which transport of substances occurs in cytoplasm

A) ​cell membrane
B) ​cytoplasm
C) ​nucleus
D) ​nuclear membrane
E) ​nucleoplasm
F) ​nucleolus
G) ​ribosomes
H) ​endoplasmic reticulum
I) ​mitochondria
J) ​Golgi apparatus
K) ​lysosomes
L) ​pinocytic vesicles
M) ​centrosome
N) ​centrioles

Endoplasmic Reticulum

An organelle within the cytoplasm of a cell.

Cytoplasm

The gel-like substance inside the cell membrane, excluding the nucleus, containing organelles and responsible for important cellular processes.

Cell Membrane

A biological membrane that separates the interior of all cells from the outside environment, controlling the movement of substances in and out of cells.