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The term E.R. in biology refers to the endoplasmic reticulum of a cell. This is membrane-like structure, continuous with the nuclear envelope (membrane around nucleus). Without ribosomes attached (smooth e.r.), it is responsible for the production of lipids and hormones. With ribosomes (rough e.r.), it creates proteins used for digestion, enzymes, and other various cell activities.

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16y ago
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1w ago

In Biology, "ER" stands for endoplasmic reticulum. It is a network of membranes within eukaryotic cells involved in the synthesis, folding, modification, and transport of proteins and lipids. The endoplasmic reticulum can be smooth (SER) or rough (RER) depending on the presence of ribosomes on its surface.

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Q: What does er mean in biology?
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