' 'M*A*S*H' and the medium,' Gelbart added, 'were made for each other.' For 11 years (10 in the Top 20), the show deftly blended sharp, thoughtful humor wi (moreâ¦)A beloved, multi-Emmy-winning series about Army surgeons cutting up amid the Korean War. 'War is hell.
CHAPTER 24 Plasma Membrane Receptors Cells use about 20 different families of receptor proteins to detect and respond to the myriad of incoming chemical and physical stimuli (Appendix 24-1). Most receptors are plasma membrane proteins that interact with chemical ligands or are stimulated by physical events such as light absorption. A few chemical stimuli, including steroid hormones and the gas nitric oxide, cross the plasma membrane and bind receptors inside the cell. Figure 24-1 sixteen classes of receptors with signal transduction mechanisms.
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.