The organelles covered in ribosomes are the rough endoplasmic recitillium.
unlike most organelles ribosomes are not covered by membranes
The ribosome is an organelle that is not surrounded by a membrane.
Ribosomes produce the proteins needed in a cell
As a general rule, practically all the internal organelles of a cell are covered by a protective membrane, except for one type, which couldn't even be called a real organelle, and those are the Ribosomes. More a macromolecular assemble than a cell organelle, the reason because they aren't membrane-bound is because they can directly interact with the membrane in order to exchange proteins, so, having their own membrane would actually act as a barrier for them to do their job correctly.
Ribosomes
Endoplasmic reticulum
In a typical animal cell, the only major organelles not covered by membranes are the ribosomes. Ribosomes are composed of r-RNA and proteins.
They are not covered by a membrane.
Scientifically explaining, they are membrane-covered organelles that are found only in the eukaryotic cell. Prokaryotic cells do not have membrane-covered organelles. The only organelle they have, not membrane-covered, are ribosomes.
cytosol
ribosomes
Ribosomes are the organelles that read coded genetic messages. Ribosomes can be found in all living cells.
Ribosomes are organelles. All cells have ribosomes.
Ribosomes are the tiniest organelles. They make proteins for the cell
Ribosomes make proteins for the cell.
unlike most organelles ribosomes are not covered by membranes
ribosomes