Question

multiple select question
select all that apply
which three organelles are not surrounded by membranes?
ribosomes
centrioles
mitochondria
golgi complex
centrosomes
endoplasmic reticulum

Explanation:

Ribosomes are non - membrane bound organelles involved in protein synthesis. Centrioles are non - membrane bound and play a role in cell division. Centrosomes are also non - membrane bound and are microtubule organizing centers. Mitochondria have a double - membrane structure, the Golgi complex has a series of flattened membrane sacs, and the endoplasmic reticulum is a membrane - bound network.

Answer:

A. Ribosomes
B. Centrioles
E. Centrosomes