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- 2.Explain the difference between steroid hormones and nonsteroid hormones in terms of their actions at target cells.1. Compare the synthesis, storage transport of location of receptors and cellular mechanism of action catecholamine, thyroid, peptide and steroid hormones.3. Complete the following table comparing steroid hormones to protein hormones Steroid Hormone Initial Binding Site (i.e. what it initially attaches to and where) Mechanism of Action Example (i.e. name one) Protein Hormone
- 3. Both the nervous system and the endocrine system work in parallel to maintain homeostasis around the body. Complete the table below comparing the two systems: Feature Tissue type Signal Signal pathway Nervous system Endocrine System Speed Duration Response Create a concept map to outline the relationship between the hypothalamus, the anterior and posterior pituitary, and their target organs. You should include the 9 hormones produced in the hypothalamus, 7 produced in the anterior pituitary gland and 2 secreted from the posterior pituitary gland. Note the stimuli for each secretion, the target tissue's response, and any feedback regulation.4.What determines plasma concentrations of specific hormones? What determines their effectiveness on target cells and tissues?10. Put the steps involved in generation and release of peptide hormones in the correct order: 1)cleavage into active hormone 2) transport into blood capillary 3)mRNA translation and preprohormone entrance into the ER 4) release signal into ECF 5)vesicular transport into Golgi apparatus 6)signal sequence peptide cleavage into prohormone
- 5. What is the difference between a tropic and nontropic hormone? Be able to describe the pathway of any hormone we discussed from origin to target cells. Be able to describe the function of any hormone we discussed.2. All membrane receptors are blocked in the cell. What hormones actions are kept and why? Write hormones and endocrine glands which secrete them.15. Which of the following is correct about peptide hormones? A. Need transport proteins in blood plasma. B. Transfer messages to an intracellular messenger. C. Can enter cells to activate or repress specific genes. D. Combine with receptors within the target cell cytoplasm.
- 17. The following terms describe how hormones can interact to maintain homeostasis. Define each term and give an example of each situation: Synergism Definition act on the same target cells to exert the same effect Example1. What is the general name given for the types of organs that produce hormones ? This is not and will not be graded1). Please Clarify how hormones communicate with their target cell. Be sure to include in your response the influence of the hormone’s chemical nature as well as information on receptors and second messenger systems.?