Question

Explain endoplasmic reticulum in brief.
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Answer 1

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Endoplasmic reticulum (ER) :

The endoplasmic reticulum is a large network of membrane-bound tube's and sheets.

It looks like long tubles or round or oblong bags.

The ER membrane is similar in structure to the plasma membrane.

Types of Endoplasmic reticulum :

There are Two types of ER-

Rough endoplasmic reticulum (RER)

Smooth Endoplasmic reticulum (SER)

Rough Endoplasmic reticulum (RER) :

RER looks rough due to the presence of ribosomes on its surface.

RER helps in proteins synthesis.

Smooth endoplasmic reticulum (SER) :

SER looks smooth because ribosomes are not attached to its surface.

SER helps in the synthesis of fats and lipids.

Biogenesis :

Fats and lipids are manufactured by smooth endoplasmic reticulum which helps in building the cell membrane.

This process is known as Biogenesis.

Functions of Endoplasmic Reticulum :

It serves as a channel for the transport of materials between various region's of the cytoplasm.

It also functions as a cytoplasmic framework providing a surface for biochemical activities.

It also helps in detoxifying many poisons and drugs.

Answer 2

Explanation:

Endoplasmic reticulum, a continuous membrane system in eukaryotic cells that plays an important role in the biosynthesis, processing, and transport of proteins and lipids.