Examlex
Name and differentiate the two types of stem cells.What are some possible uses for stem cells?
Receptor Molecules
Proteins on the surface of cells or within cells that bind to specific molecules, triggering a response.
Target Cells
Cells that are specifically affected by hormones or other biochemical signals.
Water-soluble Hormones
Hormones that are soluble in water, allowing them to easily circulate in the blood and bind to cell surface receptors, triggering a response.
Free Hormones
Hormones that are not bound to carrier proteins in the blood, making them biologically active and able to interact with target cells.
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