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Ribosomes are the factories of protein synthesis. which remain associated with rough ER. Rough endoplasmic reticulum, is called so due to the appearance of this organelle in electron micrographs. The roughness results from ribosomes, which are studded on the membranes of the organelle. Rough ER, is a network of interconnected flattened sacs, with two main functions. One is to make more membranes so as to accommodate the proteins made by ER enzymes. As a result, the ER membrane enlarges. The other major function of rough ER is to make proteins that are secreted by the cell. An example of such a secretory protein is an antibody, a defensive molecule made and secreted by white blood cells. Ribosomes of the rough ER synthesize the antibody's polypeptides, which assemble into functional proteins inside the ER. The synthesis and packaging of a secretory protein is done by ER and can be understood as following :
1. As the polypeptide is synthesized, it passes into the ER.
2. Short chains of sugar molecule are then linked to the polypeptide, making the molecule a glycoprotein.
3. The ER packages these glycoproteins into tiny sacs called a transport vesicles which buds off from the ER membrane and travels to the Golgi apparatus for further processing. From there, a transport vesicle carry these molecules to the plasma membrane and release its contents from the cell.
n Smooth endoplasmic reticulum (SER)
What else can I help you with?
What part of the cell takes proteins and changes them so that they are ready to leave the cell?
The Golgi apparatus is the part of the cell that modifies, sorts, and packages proteins into vesicles for transport outside of the cell. It acts as a processing and distribution center for proteins destined for secretion.
Cell part that produces proteins?
The part of a cell that produces proteins are the ribosomes. They are little circles that stick to the Rough Endoplasmic Reticulum and the chlorophyll. Ribosomes are actually proteins themselves.
What cell part transports proteins and other things as well through the cell?
The endoplasmic reticulum (ER) is the cell part responsible for transporting proteins and other molecules within the cell. The rough ER, with ribosomes attached to its surface, is involved in protein synthesis and transport. The smooth ER plays a role in lipid synthesis and detoxification.
Which cell organelle makes new ribosomes and is found in the nucleus?
The organelle that synthesises ribosomes and is found in the nucleus is the nucleolus.
What part of a cell packages and distributes proteins?
The Golgi apparatus is responsible for packaging and distributing proteins in a cell. Proteins are modified, sorted, and packaged into vesicles at the Golgi apparatus before being transported to their final destination within the cell or outside of it.
Where are ribosomes locted on a protein?
Ribosomes are NOT located ON a protein. Ribosomes are organelles found in cells in/on which the cell synthesises (makes) proteins, using information that comes from the DNA in the cell's nucleus.
What is organ or cell which synthesises specific substances?
deoxyribonucleic acid
The part of the cell that constructs the proteins that your cell needs is the?
ribosomes are the organelles responsible for constructing proteins in the cell.
What part of the cell carries proteins from one part of the cell to the other?
endoplasmic reticulum
On what part of the cell are proteins made?
ribosomes
In what part of a cell are proteins made?
ribosomes
What part of the cell are proteins are made?
the ribosomes
What forms part of the cell membrane and many of the cell organelles?
The answer is proteins.
What can package proteins that is in a building but not part of a cell?
The golgi apparatus packages proteins.
What part of the cell takes proteins and changes them so that they are ready to leave the cell?
The Golgi apparatus is the part of the cell that modifies, sorts, and packages proteins into vesicles for transport outside of the cell. It acts as a processing and distribution center for proteins destined for secretion.
What cell part proteins?
The rough endoplasmic reticulum
What part of virus allows it to attach to a cell?
The proteins in the capsid allow the virus to attach to the "docking stations" proteins of the host cell.
