Why is a buffer system such as phosphate considered a closed ...

[saliriagwu]

Why is a buffer system such as phosphate considered a closed system?
 
  a. All the components remain in the system.
  b. It has limited utility in buffering acids.
  c. Its ability to buffer volatile acids is in-complete.
  d. Once its buffer level is established, it will never change.

Question 2

What is the sum of all blood buffers in 1 L of blood?
 
  a. Buffer base
  b. Base excess
  c. Standard bicarbonate
  d. Base deficit

[bigsis44]

Answer to Question 1

ANS: A
A nonbicarbonate buffer system is called a closed buffer system because all the components of acid-base reactions remain in the system.

Answer to Question 2

ANS: A
The blood buffer base is the sum of bicarbonate and nonbicarbonate bases measured in mmol/L of blood.

[saliriagwu]

Excellent

[mjenn52]

Gracias!