Fill in the Blanks Endorcine System vocabOnline version Fill is the descriptions by Aly Rose 1 growth circulate chemical carrier Peptide derivatives receptors protein channel membrane bind development enzymes Lipid synthesis reproduction The Endocrine System regulates long - term processes like , , . and . It also uses messengers to relay information and instructions between cells . Target cells are specific cells that possess needed to and " read " hormonal messages Hormones stimulate synthesis of or structural proteins , Increase or decrease rate of , and turn existing enzyme or " on " or " off " Hormones can be divided into three groups , Amino acid , hormones , derivatives Hormones freely or travel bound to special