Essay due tomorrow

I. Hormones work over short and long distances in the body. a. Discuss how a ligand can work over a short distance. Give an example of one, how it signals local cells and for what effect it is responsible. b. Discuss how a protein hormone can work over a long distance. Give an example of one, how it signals cells and for what effect it is responsible. c. Discuss how a steroid hormone can work over a long distance. Give an example of one, how it signals cells and for what effect it is responsible. d. Discuss two hormones that work together opposite in function in negative feedback loops to maintain homeostasis. Insulin and glucagon are exempt for part d. (research antagonistic hormone pairs and negative feedback controls.