Endoplasmic Reticulum
For: Science Class 11
It is the network of tube like structures and sac like structures. It arises from nuclear membrane and extends up to cell membrane. The endoplasmic reticulum is formed by three structures.
Cisternae: They are long elongated flattened unbranched sac like structures lie parallel to each other.
Vesicles: They are minute spherical or oval sac like structures
Tubules: They are branched tube like structures they form net work with cisternae and vesicles.
Function of Endoplasmic Reticulum
It provides mechanical support to the cell. Therefore, it is also known as cytoskeleton. It synthesizes proteins and hormones. It helps to transport ions, molecules and impulse or metabolites. It forms nuclear membrane. It also forms new cell membrane and components.
Rough Endoplasmic Reticulum | Smooth Endoplasmic Reticulum |
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Tags:
Biology