1. Discuss the differences in actions of peptide hormones versus steroid hormones as a function of the kind of chemicals involved, with peptides unable to pass easily!…æough the plasma membrane, while lipid-based steroids easily diffuse through the plasma membrane.
2. Discuss how peptide and steroid hormones act to turn on proteins present in the cytoplasm, as opposed to stimulating the production of new hormones. Explain how that affects the length of time required for the response and the stability of the response.
3. Discuss the mechanism of control of some kinds of endocrine functions (i.e., receptors in the hypothalamus respond to the presence osLŒ÷sence of the final hormone in the sequence, thus turning on or off the regulatory hormones that stimulate the anterior pituitary to release stimulatory hormones).
4. Discuss how the nervous and endocrine systems
interact in regulating the homeostatic mechanisms of the body.