Where Are Steroids Synthesized?

Where Are Steroids Synthesized? The steroid hormones are synthesized in the adrenal cortex, the gonads, and the placenta; are all derived from cholesterol and many are of clinical importance. Steroid hormones are synthesized in the mitochondria and smooth endoplasmic reticulum. Where are lipids and steroids synthesized? The proteins made by the rough endoplasmic reticulum are