How do receptors impart specificity within the endocrine system? What might be some advantages of having complex mechanisms for hormone action (such as second messengers)?

The hormone mechanism which results in the release of intracellular Ca++ is the:   Question options:   PIP 2nd messenger mechanism    humoral mechanism   2nd messenger – adenylate cyclase  mechanism   Steroid hormone mechanism

What are catecholamines in relation to the endocrine system?

How is it that the reaction of a single target cell to a single hormone molecule may have an effect on a million other molecules?

How do receptors contribute to the endocrine system's specificity? What are some of the potential benefits of complicated hormone action mechanisms (such as second messengers)?

Which of the following hormone describes the signal transduction mechanisms for estrogen a steroid hormone ?

How does the receptor location differ for lipid- versus water-soluble hormones and why?

What are the broad characteristics that distinguish a chemical substance from a hormone, and how can hormones attain specificity for certain types of target cells?

Which of the following combinations belongs to the five major classes of steroid hormone family?

Which of the following are ways in which hormones exert their effects?   - by controlling the rates of enzymatic reactions - by controlling changes in gene transcription - by activating postsynaptic receptors and generating EPSPs in hypothalamic neurons - by controlling the transport of ions across a cell membrane