A ribosome is a cell structure but is not considered an organelle because it
A) does not contain its own genetic material.
B) does not produce its own energy.
C) lacks a membrane.
D) is present in prokaryotes.
E) is not made up of proteins.

Question

Quizplus · Accepted Answer

An organelle is defined as a membrane-bound structure within a cell, and ribosomes do not have a membrane. While ribosomes do not contain their own genetic material or produce their own energy, these factors alone do not disqualify a structure from being considered an organelle. Additionally, ribosomes are present in both prokaryotes and eukaryotes, so this is not a determining factor either. The fact that ribosomes lack a membrane is what sets them apart from other organelles.

A Ribosome Is a Cell Structure but Is Not Considered