<P> Water - soluble hormones include glycoproteins , catecholamines , and peptide hormones composed of polypeptides , e.g. thyroid - stimulating hormone , follicle - stimulating hormone , luteinizing hormone and insulin . These molecules are not lipid - soluble and therefore can not diffuse through cell membranes . Consequently , receptors for peptide hormones are located on the plasma membrane because they have bound to a receptor protein located on the plasma membrane . </P>
<P> Water - soluble hormones include glycoproteins , catecholamines , and peptide hormones composed of polypeptides , e.g. thyroid - stimulating hormone , follicle - stimulating hormone , luteinizing hormone and insulin . These molecules are not lipid - soluble and therefore can not diffuse through cell membranes . Consequently , receptors for peptide hormones are located on the plasma membrane because they have bound to a receptor protein located on the plasma membrane . </P>
where are receptors for water soluble hormones located
where are receptors for water soluble hormones located
on the plasma membrane
on the plasma membrane