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29 Nov 2019

Classify each phrase on the left into the correct hormone category: water-soluble hormones, lipid-soluble hormones, or both types of hormones. Hormone travels in bloodstream to target cells

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Related questions

1. Be able to define the following terms: releasing hormone,inhibiting hornone, trooic hormone, nontropic hormones,neurosecretory cells.

2. What are hormones?

3. What are two specific differences between the endocrine andnervous systems?

4. What are the four different types of cell signaling?

5. What are the three types of hormonal control pathways? Givean example of each.

6. What is local regulator?

7. What type of feedback is a common feature of pathways thatcontrol homeostasis?

8. What are the three major classes of molecules that functionas hormones? Which are water-souble and which are lipid-souble?

9. Signaling by a hormone involves three key events. What arethey?

10. What is the correlation between solubility of a hormone andthe location of its receptors?

11. In addition to receptor location, water-soluble andlipid-soluble hormones also exhibit additional differences in theirresponse pathways. What are these differences?

12. What is signal transduction pathway?

13. Why can the same hormone have different effects on differentbody tissues?

14. Liver cells and the blood vessels of skeletal muscle cellshave identical surface receptors for epinephrine, yet the responeof these two cells types is dramatically different. Explain howthis is possible.

15. In the "fight or fight response" the release of epinephrinefrom the adrenal medulla cause skeletal muscle blood vessels todilate while simultaneously constricting blood vessels of theintestine. Explain how this is possible.

16. List the three types of local regulators discussed in classand explain their function.


1. What are the two classic divisions of the endocrine system?

2. What are some non-classical examples of organs with hormone function?

3. Based on their chemical composition, there are several types of hormones. List the different types and give examples of each.

4. What are pheromones?

5. Discuss how hormones elicit an action on a target cell. What are the differences in how the various types of hormone act?

1. which is not a factor affecting membrane transport of a molecule?

a. molecular size b. lipid solubility c. its role in homeostasis d. concentration of the molecule

2. True or false: In allosteric enzyme inhibition, the active site is blocked by another molecule

3. Thyroxine (t4) is synthesized from the amino acid called tyrosine, therefore it belongs to the category of hormones called_____. however, since t4 is a ______ hormone, it utilizes an itracellular receptor mechanism.

a. steroids; lipid-soluble b. amines; lipid-soluble c. peptides; water soluble d. steroid; water soluble e. amines; water-soluble

4. according to peter mitchell's model of chemiosmosis, a ________ is used to activate the mitochondrial ATP synthase in the production of ATP

a. H+ gradient b. CA++ gradient c. NA+ gradient d. K+ gradient e. ATP gradient

5. which of the following serves as a bridge step from glycolysis to the kreb's cycle?

a. the convesion of PGAL to PGA b. oxidative phosphorylation c. kreb's cycle d. acetyl CoA formation e the regeneration of NAD

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