Identify if each of the following have higher values in systemic venous blood or systemic arterial blood ?

Question

1 Plasma PCO2.

2 erythrocyte PCO2

3 Plasma [HCO3-] ( [ ] =concentration )

4 Plasma Cl-

please explain your answer for each, try to be specific.

Answer 1

1 PCO2 would be higher in venous blood because the capillaries would exchange the O2 in the arterial blood for CO2 in the venous blood

2  The PCO2 would also be higher in the venous blood

3  The plasma HCO3- would be higher in the arterial blood because the kidney decreases its concentration to buffer the blood so the pH would be at a more desirable level when it reaches the lungs

4  Plasma Cl- would be higher in the venous blood because the ions would be exchanged in the cells