The Smooth endoplasmic reticulum helps aid in the process of lipid synthesis. Smooth endoplasmic reticulum is found in a variety of cell types (both animal and plant), and it has different functions in both of the different cells. The smooth ER also contains enzymes that create glucose.
The reason rough endoplasmic reticulum is called 'rough' are the ribosomes. Millions of ribosomes cover the surface of rough endoplasmic reticulum and make it appear bumpy under microscopic magnification. Ribosomes are the sites where proteins are created from amino acids.
The information for the synthesis of a particular protein, is conveyed from the DNA to the ribosome, by the messenger RNA (mRNA) mechanism. Rough endoplasmic reticulum is connected with the outer envelope of the cell nucleus. As described before, it is one of the largest cell organelles and is prominently branched out around the cell nucleus and Golgi bodies.
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