What Is The Difference Between Smooth And Rough Endoplasmic Reticulum?
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Answer:
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Explanation:
The endoplasmic reticulum is a delicate membranous structure contiguous to the nuclear membrane and present in the cytoplasm. It forms an extense net of channels throughout the cell and it is divided in rough and smooth types.
The rough endoplasmic reticulum has great amount of ribosomes adhered to the external side of its membrane. The smooth endoplasmic reticulum does not have ribosomes attached to its membrane.
The main functions of the rough endoplasmic reticulum are synthesis and storage of proteins made in the ribosomes. The smooth endoplasmic reticulum plays a role in the lipid synthesis and, in muscle cells it is importante in the conduction of the contraction stimulus.
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Answer:
Rough endoplasmic reticulum contains ribosomes, while smooth endoplasmic reticulum does not contain ribosomes. The ribosomes are what give rough endoplasmic reticulum its characteristic "roughness.
Both the smooth and rough endoplasmic reticulum help in the production and storage of proteins The main difference is that one contains ribosomes on it and the other does not.
The rough endoplasmic reticulum (RER) has ribosomes on its surface. This is what give the RER a "rough" appearance. Rough ER looks like sheets.The RER synthesizes (makes) and packages proteins. The RER is attached to the nuclear membrane. The Golgi apparatus tends to be on the other side of the RER.
The smooth endoplasmic reticulum (SER) does not contain ribosomes. The Smooth ER looks more like tubes. The SER helps in the storage of proteins and lipids. Cells that produce oils have a higher ratio of SERs than do other cells. The smooth endoplasmic reticulum can be found dispersed throughout the cytoplasm of the cell.