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unlike most organelles ribosomes are not covered by membranes

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What organelle is a nonmembranous organelle?

Organelles that are not membrane bound. For example, centriole, nucleolus, ribosome.


What two things make up ribosomes and are are ribosomes surrounded by membrane like other organelles?

Ribosomes are not membrane bound, they are free cytoplasmic organelles responsible for the translation of cytoplasmic mRNA's. When a ribosome begins to synthesize proteins that are needed in some organelles, the ribosome making this protein can become "membrane-bound". In eukaryotic cells this happens in a region of the endoplasmic reticulum (ER) called the "rough ER". The newly produced polypeptide chains are inserted directly into the ER by the ribosome and are then transported to their destinations. Ribosome in eukaryotes are called 80S ribosomes and consist of a small 40S subunit and a larger 60S subunit. Prokaryotes have 70S ribosomes consisting of a 30S and 50S subunits. Hope this helps.


What organelles have no DNA?

The endoplasmic reticulum, Golgi apparatus, and lysosomes are examples of organelles that do not contain DNA. These organelles are involved in various cellular functions, such as protein synthesis and transport, but they do not require their own DNA for their activities.


Ribosome Endoplasmic reticulum and Golgi are parts of the cell called what?

Ribosome, endoplasmic reticulum, and Golgi apparatus are all parts of the cell involved in protein synthesis and modification. Together, they form the cell's protein production and processing machinery.


Would like to know examples of membrane bound organelles and non membrane bound organelles?

Membrane-bound organelles include the nucleus, endoplasmic reticulum, Golgi apparatus, mitochondria, lysosomes, and peroxisomes. Non-membrane-bound organelles include ribosomes, centrioles, and the cytoskeleton.

Related Questions

What organelles does translation occur?

The Ribosome


Are ribosome two part organelles?

Yes it has two parts. One is big and other is small.


Which organelles is responsible for producing enzymes?

Ribosome


What are organelles that make proteins?

Ribosome's make proteins.


What organelles are responsible for protein synthesis in the cell?

There are four different organelles that deal with making protein which are ribosomes, the nucleus, rough endoplasmic reticulum, and the golgi apparatus. Of these four organelles, the ribosome assembles the polypeptides to create protein while the other four help create the protein needed.


The ribosome are organelles?

Yes they are organelles. They are in every cells.


What is the list of organelles that part in protein synthesis?

Nucleolus , ribosome


What organelles read codes genetic measages?

Ribosomes are the organelles that read coded genetic messages. Ribosomes can be found in all living cells.


What is the list of organelles take part in protein synthesis?

Nucleolus , ribosome


Is ribosomes a nuclear organelle?

No. Ribosomes are classified as being either "free" or "membrane-bound". Free ribosomes can move about anywhere in the cytosol, but are excluded from the cell nucleus and other organelles. When a ribosome begins to synthesize proteins that are needed in some organelles, the ribosome making this protein can become "membrane-bound".


Which organelle is responsible for production of protein?

The organelles that is responsible for the production of proteins inside a cell is the ribosome. The ribosomes are protein builders and synthesizers.


What organelle is a nonmembranous organelle?

Organelles that are not membrane bound. For example, centriole, nucleolus, ribosome.