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Author Question: Why is the bicarbonate buffer system considered an open buffer system? a. As the major blood and ... (Read 143 times)

storky111

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on: Jul 16, 2018
Why is the bicarbonate buffer system considered an open buffer system?
 
  a. As the major blood and body buffer sys-tem, it is open by definition.
  b. It operates only in the extracellular fluid, avoiding cell closure.
  c. Its acid (carbonic acid) is converted to CO2 and removed.
  d. Its chemical reactions occur very quickly.

Question 2

A solution that resists large changes in pH upon addition of an acid or a base best describes which of the following?
 
  a. Acid-base excretor
  b. Buffer solution
  c. Catabolic regulator
  d. Homeostatic control


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jliusyl

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
The bicarbonate system is called an open buffer system because H2CO3 is in equilibrium with dissolved CO2, which is readily removed by ventilation.

Answer to Question 2

ANS: B
A buffer solution resists changes in pH when an acid or a base is added to it.


storky111

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Reply 2 on: Jul 16, 2018
Excellent

nyrave

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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