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.
1 Steroids pass into a cell's nucleus, bind to specific receptors and genes and trigger the cell to make proteins. 2  Amino acid derivatives, such as epinephrine, are water-soluble molecules derived from amino acids (the building blocks of protein). 3  These hormones are stored in endocrine cells until needed. if the hormone will bind to receptor sites outside or inside of the target cell (fat soluble can bind both whereas water soluble hormones usually bind on the outside) and. 2  how the hormone is broken down (metabolized). 3  Steroid hormones are fat-soluble molecules made from cholesterol.