12. What is the difference between reabsorption and secretion?
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13. What substances does the PCT reabsorb? ______________________________________
14. What is aldosterone and why is it important for the secretion of K+?
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15. What type of urine is formed if fluid intake increases? Decreases?
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16. How does ADH work? ______________________________________________________
17. What part of the LOH is permeable to water? Permeable to solutes?
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18. List the structures that transport urine from the kidneys for excretion.
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19. How does the bladder know to empty? ________________________________________
20. Parathyroid hormone stimulates the reabsorption of what ion and where?
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