ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
ENDOCRINE ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lipid-Soluble Hormones can go through the cell membrane and water-soluble hormones cannot.
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Lipid-Soluble Hormones cannot go through the cell membrane and water-soluble hormones can.
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Lipid-Soluble Hormones target cells inside ducts and water-soluble hormones target cells deep outside ducts.
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Lipid-Soluble Hormones target cells deep inside the body and water-soluble hormones target cells superficially.
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Detailed explanation-1: -Lipid-soluble hormones diffuse through the plasma membrane to enter the target cell and bind to a receptor protein. Water-soluble hormones bind to a receptor protein on the plasma membrane of the cell.
Detailed explanation-2: -What are these differences? Water-soluble hormones are secreted by exocytosis, travel freely in the bloodstream, and bind to cell-surface receptors. Lipid-soluble hormones diffuse across cell membranes, travel in the bloodstream bound to transport proteins, and diffuse through the membrane of target cells.
Detailed explanation-3: -Answer and Explanation: False. Lipid-soluble hormones are able to diffuse across the cell membrane, and therefore, their receptors are inside the cells. In contrast, water-soluble signals cannot cross the plasma membrane and therefore, their receptors are on the cell surface.