Question

Low PCO2 leads to low blood pH.
a. True
b. False

Answer 1

B

pCO2 is the partial pressure and is a measure of the amount of carbon dioxide dissolved in the blood.

Explanation:

The amount of CO2 in the blood is dependent on the rate of cellular respiration of tissues and the rate of expelling of CO2 in the lungs. Carbon anhydrase is an enzyme in the blood that helps dissolved CO2 which is important in the transport of the respiratory gas.

CO2 dissolved in blood plasma to form carbonic acid. The higher the CO2 in the blood, therefore,the lower the pH. The normal range of pCO2 in the blood is 35–45 mmHg keeping pH at a homoeostatic range of 7.4

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