A stack of flattened membrane-bound sacs that modifies, packages, and ships proteins and lipids received from the endoplasmic reticulum. It acts like a post office, adding molecular addresses and packaging materials for delivery.
Named after Italian physician Camillo Golgi, who first observed this structure in 1898 using a silver staining technique he developed. 'Apparatus' simply means 'equipment' or 'device' in Latin, reflecting its function as cellular machinery.
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