ribosomes organelle?

[Cal55]

Are ribosomes considered organelles?

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[N1264d]

Good old Wikipedia!

I am by no means an expert but here goes since I am studying this now. Technically they are not. That being said many people and texts still refer to them as organelle. As I understand it at one time it was suggested they be included, however that idea was disregarded. Ribosomes are not membrane bound and therefore are not considered organelle.

 

[AmpedUp]

Nope. It's not an organelle. If it was, the organelle distinction between prokaryotic (no organelles) and eukaryotic (contain organelles) would be obsolete, because both cell types contain ribosomes....prokaryote cells have smaller ribosomes though.

 

[Cal55]

ya that was my reasoning. On the practice test from ada, it asks what the smallest organelle is, and the answer is ribosome, and I wondered how, even though it is the smallest, but it is not an organelle by definition.

 

[RSD2014]

Nope. It's not an organelle. If it was, the organelle distinction between prokaryotic (no organelles) and eukaryotic (contain organelles) would be obsolete, because both cell types contain ribosomes....prokaryote cells have smaller ribosomes though.

ya that was my reasoning. On the practice test from ada, it asks what the smallest organelle is, and the answer is ribosome, and I wondered how, even though it is the smallest, but it is not an organelle by definition.

From my recollection, Ribosomes are non-membrane organelles.
The main distinction between prokaryotic and eukaryotic is that eukaryotic has a Nucleus to store DNA, while prokaryotic stores DNA in a region called Nucleoid. 🙂

Non-membranous organelles

• Cytoskeleton
• Centrioles
• Cilia
• Flagella
• Ribosomes
• Vaults

Membranous organelles

• Mitochondria
• Nucleus
• Endoplasmic Reticulum (ER)
• Golgi Apparatus
• Lysosomes
• Peroxisomes

 

[Moose A Moose]

Negative- fo sho