Question

Identify the most important buffer system in blood plasma from the following:
a. bicarbonate buffer
b. phosphate buffer
c. protein buffer
d. hemoglobin buffer

Answer 1

Haemoglobin buffer is the most important buffer system in the blood plasma.

Inside the lungs the formation of oxy-haemoglobin from reduced haemoglobin gives out hydrogen ions that react with bicarbonate to form carbonic acid.

The CO2 in the lung shifts to the equilib­rium towards the production of CO2 that is con­tinually eliminated in the expired air.

The blood buffers consist of the plasma haemoglobin, oxy-haemoglobin, bicarbonates, proteins and inorganic phosphates.

Answer 2

Answer:

D

Explanation: hemoglobin most important buffer system in plasma