Nucleated cells have cytoplasm membrane-tube networks {endoplasmic reticulum}| (ER), extending from cell nucleus. Endoplasmic reticulum can have attached ribosomes {rough endoplasmic reticulum} or no attached ribosomes {smooth endoplasmic reticulum}. Neurons, unlike other cells, have much rough endoplasmic reticulum. ER adds sugars to proteins.
Biological Sciences>Cell>Organelle>Microsome
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Date Modified: 2022.0224