three-dimensional system of sheet like membrane spreding through the cytoplasm of the cell
Rough ER
Ribosomes on it's surface
fuctions:
- provide a large surface area for the synthesis of proteins and glycoporoteins
- provide a pathway for transport of materials
Smooth ER
doesn't have ribosomes on it's surface
functions:
- synthesise, store and transport lipids
- synthesise, store and trannsport carbohydrates
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