Electrolytes

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Author:
nando54321
ID:
221472
Filename:
Electrolytes
Updated:
2013-05-28 12:33:25
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Electrolytes
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Electrolytes
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  1. What is an electrolyte?
    any substance that separates into ions when dissolved in water
  2. what are some examples of electrolyte
    Na+, K+ and HPO32-
  3. what is non-electrolyte?
    a substance that does not produce ions in water
  4. what are some examples of non-electrolytes
    glucose, uria and proteins
  5. what is are the four functions of electrolyte?
    • 1-control osmosis
    • 2-acid-base balance
    • 3-carry electrical current-action potential
    • 4-co-factors
  6. what is the most abundant extracellular ion?
    Na+
  7. what important function does Na+ perform in the body?
    water retention
  8. what is the most abundant anion in the body?
    Cl-
  9. what is one important function of Cl-
    balances charger due to leaky channels
  10. what 3 hormones regulate Cl-
    angiotensin II, aldosterone and ANP
  11. what is the most abundant cation?
    K+
  12. what is an important function in K+
    fluid balance for cells
  13. what hormone regulates K+
    aldosterone
  14. name the 3 important intracellular ions
    HPO4-2, PO4-3, and H2PO4-
  15. why is acid-base important?
    pH balance
  16. what are the 3 principal buffering systems?
    • 1-protein
    • 2-bicarbonate buffer
    • 3-phosphate beffuer
  17. what is the most important buffer system?
    proteins
  18. what are fixed acids?
    non-volatile acids
  19. true or false?
    kidneys are the only organ that excrete fixed acids?
    true

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