of long-loop negative feedback? of dopamine release by prolactin hooe-releasing
ID: 3508857 • Letter: O
Question
of long-loop negative feedback? of dopamine release by prolactin hooe-releasing hormone (GHRHD) release by growh homone A eo on of grow B. inhibition CCihibition of growth hormone-releasing hormone (GHRHD release by insulin-ike growth factor-1 D. Inhibition of thyrotropin releasing hormone CTRH) by thyroid stimulating hormone (TSH) E. All of the choices are correct What properties are characteristic of ion channels? A. They are usually lipids. B. They exist on one side of the plasma membrane, usually the intracellular side C. They can open and close depending on the presence of any of three types of "gates" D. They permit the movement of ions against concentration gradients. E. They mediate facilitated diffusion 6. Which is not a symptom of Cushing's disease? A. high blood pressure B. bone loss C. suppressed immune function D. Goiter E. hyperglycemia 7. 8. Chronic exposure to a ligand (messenger)the receptor population for that chemical messenger on the target cell. A. decreases the specificity of B. decreases the affinity of C. upregulates D. down regulates E. changes the conformation of Which organelles would you expect to be especially numerous in cells that expend a great deal of energy in the form of ATP? A. Peroxisomes B. Endosomes C. Lysosomes D. Ribosomes E. Mitochondria 9. 10. If a cell is placed into an unknown solution and it shrinks, what can be the unknown solution? A. Its nonpenetrating solute concentration C. I concluded about was greater than that of the cell g solute concentration was less than that of the cel f the choices are tooncentration was equal to that of th cell ts nonpenetrating soluteExplanation / Answer
5. The answer is c. inhibition of growth hormone-releasing hormone (GHRH) release by insulin-like growth factor-1
6. The answer is c. They can open and close depending on the presence of any of three types of "gates."
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