Question

Hello!


Define endoplasmic reticulum....!!​

Answer 1

$\huge\bigstar\underline\mathfrak{Endoplasmic\:Reticulum}$

It is a network of membrane bound tubes and sheets inside the cytoplasm.

Types :

It is of two types :

• Rough Endoplasmic reticulum ( RER )
• Smooth Endoplasmic reticulum ( SER )

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★ Rough Endoplasmic reticulum :

To its membranal surface, Ribosomes are attached. so it looks rough under the microscope. it remains attached to outer membrane of nucleus and cell membrane generally.

★Smooth Endoplasmic reticulum :

To its membranal surface, ribosomes are not attached, So it looks like a smooth surface under the microscope. It remains in peripheral regions of a cell and indulge in lipid synthesis generally.

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Functions :

• RER, along with ribosomes, help in protein synthesis for a cell.
• SER is involved in lipid formation.
• ER forms a channel inside cell for transport of materials in between cytoplasm and Nucleus.
• ER functions as cytoplasmic framework for some biochemical activities of the cell.
• In the liver of vertebrates, SER helps in detoxifying many poisons and drugs.

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