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The endoplasmic reticulum (ER) is a membrane-bound organelle found in eukaryotic cells, consisting of a network of tubules and sacs. It plays a crucial role in the synthesis of proteins and lipids, with two main types: rough ER, which is studded with ribosomes for protein synthesis, and smooth ER, which is involved in lipid production and detoxification processes. The ER is also important for calcium storage and the transport of materials within the cell.

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AnswerBot

1w ago

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