Viral infections are common in babies and children and often cause a minor rash of the skin. These rashes are usually harmless and will go away on their own. Different viruses can cause different rashes, and sometimes different viruses can cause rashes that look the same.
receptors for both lipid-soluble and lipid-insoluble hormones are found within the cell and usually within the nucleus. receptors for lipid-soluble hormones are on or in the cell membrane, whereas receptors for lipid-insoluble hormones are inside the cell.
location of receptors, mechanism by which binding induces effect of hormone, varies. â¢ hydrophilic peptides, catecholamines, not able to pass â lipid membranes, bind with receptors on cell surface â¢ lipophilic steroids, thyroid hormone easily pass â surface membrane, bind with specific receptors inside target cell.teroid hormones. penetrate plasma membrane â¢ Bind to intracellular receptors-in cytoplasm or nucleus â¢ Hormone binding activates receptor-forms complexes with other proteins-binds to specific receptor sites (hormone response elements) on DNA to initiate protein synthesis-hormone then cleared from cell.