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The Structure of Cells

Author(s): Center for Educational Outreach

Smooth Endoplasmic Reticulum

The smooth ER produces oils, steroids and phospholipids. Testes and ovaries are especially rich in smooth ER, as they produce sex hormones. Liver cells store carbohydrates which, when hydrolyzed, must be dephosphorylated by the smooth ER before they can exit the cell. The smooth ER also detoxifies drugs and poisons in the liver.