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Author Question: What drives the bicarbonate buffer systems enormous ability to buffer acids? a. The fact that ... (Read 237 times)

RRMR

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on: Jul 16, 2018
What drives the bicarbonate buffer systems enormous ability to buffer acids?
 
  a. The fact that H2CO3 is a strong buffer
  b. The Henderson-Hasselbalch equation
  c. The large amounts of 2,3-DPG in red blood cells
  d. Ventilation continually removing CO2 from system

Question 2

Which of the following systems is primarily responsible for the buffering of fixed acids?
 
  a. Ammonia
  b. HCO3
  c. Hb
  d. Phosphate


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moormoney

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

ANS: D
This allows HCO3 to continue buffering H+ as long as ventilation continues. Hypothetically, this buffering activity can continue until all body sources of HCO3 are used up in binding H+ (i.e., the aforementioned reaction is continually pulled to the left because ventilation continually re-moves CO2).

Answer to Question 2

ANS: B
Most of the added fixed acid is buffered by HCO3 because ventilation continually pulls the re-action to the left.


RRMR

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Reply 2 on: Jul 16, 2018
Gracias!

chereeb

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Reply 3 on: Yesterday
Excellent

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