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Q: Are ribosomes always attached to the RER?
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What is ER with ribosomes attached to its surfaces?

ER with ribosomes attached to its surfaces is called rough endoplasmic reticulum (RER). RER is involved in protein synthesis as the ribosomes attached to it synthesize proteins that are then transported and modified within the ER. The RER is characterized by its bumpy appearance due to the presence of ribosomes.


Are ribosomes found on the RER?

yes they are attached with RER and therefore give the rough appearance to them as compared wtih SER


Does the smooth er transport proteins?

The smooth endoplasmic reticulum (SER) does not have ribosomes attached to it and only makes lipids. The rough endoplasmic reticulum (RER), on the other hand, does have ribosomes attached to it. The RER makes lipids as well but also helps transport the proteins made by the ribosomes attached to it.


Why does rough ER look rough under the microscope?

ribosomes attached on the sides of the RER makes it look rough under the microscope .


What internal transport system without ribosomes attached?

This called the rough endoplasmic reticulum or RER.


Are ribosomes floating freely in the cytoplasm?

Yes. Ribosomes are found both freely floating and attached to the endoplasmic reticulum.


Functional difference between RER and SER?

rough endoplasmic reticulum[RER] has ribosomes attached to it giving a rough appearance thereby deriving its name. smooth endoplasmic reticulum[SER] is devoid of ribosomes. RER- involved in protein synthesis as ribosomes are concerned with protein synthesis. SER-concerned with lipid synthesis in intestinal cells& with steroid formation in adrenals


What is the constructive site of a protein?

The Endoplasmic Reticulum-ally attached Ribosomes; also known as the rough endoplasmic reticulum or RER.


What is a construction site of a protein?

The Endoplasmic Reticulum-ally attached Ribosomes; also known as the rough endoplasmic reticulum or RER.


How is rough endoplasmic recticulum different from smooth endoplasmic recticulum?

rough endoplasmic reticulum (RER) has ribosomes attached to it but SER doesn't


What causes rough endoplasmic reticulun look rough under a miscrocope Rough er has ribosomes attached to it?

The rough endoplasmic reticulum(RER) appear rough when observed under a microscope because the outer region of the RER is studded with ribosomes which form sites for protein synthesis.


What can be found in the cisternae of RER?

In the cisternae of the rough endoplasmic reticulum (RER), you can find ribosomes attached to the cytoplasmic side. These ribosomes are responsible for protein synthesis. The cisternae act as a site for the folding and modification of proteins before they are transported to other cellular locations or secreted outside the cell. The RER is particularly abundant in cells that produce large amounts of proteins, such as plasma cells and pancreatic cells.