Steroids

well i dont think the Smooth ER connects the Rough ER to the Golgi apparatus i thought its functions were synthesis of lipids and steroids, metabolism of carbohydrate and attachment of receptors on cell membrane proteins. Have you checked in another book?

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"how do steroids work"

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... And yes, I would say membranes that are more fluid are more permeable to small molecules than membranes with a more ordered structure. Steroids are bound to protein in the blood. Here your textbook is referring to the steroid hormones of course. they are bound noncovalently to protein ...

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... having different transporters embedded)? And just more and more unclear questions regarding this topic :p How come that some literature says "steroids diffuse into cells" and bind to their receptors? Aren't ALL those hydrophobic molecules carried by proteins in the blood stream and inside ...

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... such as Kallmann's syndrome (although I am unsure both are totally lacking in this case), or caused by specific medication, such as gonadal steroids antagonists. My question is, are there good documented cases of people totally lacking all gonadal steroids, through natural or artificial ...

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