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Endoplasmic reticulam is a cell organ .it found in a cytoplasm. there are two types of er
1 rough er - contain rna in its body and helps in protein syenthesis
2 smooth er - its surface is smooth and helps in fat syenthesis
er found in colonies and sepretly  it gives a definite shape of cell that y it is also known as skeleton of cell
thanking u
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A network of membranous tubules within the cytoplasm of eukaryotic cell, continuous with the nuclear membrane.
it is a type of orgenele in a cell which act as atransport system like the circulatory system in humans