Which is a Non-Membrane-Bound Organelle

Question

Which is a non-membrane-bound organelle?
A)Microtubule
B)Lysosome
C)Golgi apparatus
D)Rough endoplasmic reticulum
E)Mitochondrion

Accepted Answer

Microtubules are non-membrane-bound organelles, part of the cytoskeleton that provides structural support to cells.