Transport of carbon dioxide

Question 1

What does dissolved co2 form

Answer 1

Hydrogen ions and hydrogen carbonate ions

Question 2

What does the hydrogen ions do?

Answer 2

Lower the pH and the affinity of hameglobin for oxygen

Question 3

Transport of carbon dioxide 1/11

Answer 3

co2 will be given off by respriing cells and tissues

and released into the blood plasma

Question 4

Transport of carbon dioxide 2/11

Answer 4

Once its in the blood plasma some of the co2 will diffuse into the RBC

Question 5

Transport of carbon dioxide 3/11

Answer 5

once the co2 is inside the RBC the co2 will react with water to form carbonic acid

which is

c02+h20=h2co3

Question 6

Transport of carbon dioxide 4/11

Answer 6

Carbnoic acid is catalsyed by an enyme called carbonic anhydrase

Question 7

Transport of carbon dioxide 5/11

Answer 7

The carbnoic acid dissociated (releases) a H+ ion so it will form

H+ + HC03-

Question 8

Transport of carbon dioxide 6/11

Question 9

Transport of carbon dioxide 7/11

Answer 9

The carbonic acid will diffuse back into the blood plasma

Question 10

Transport of carbon dioxide 8/11

Answer 10

Within the RBC there will hameglobin and each HB molecule can carry 4 oxygen

HB08

Question 11

Transport of carbon dioxide 9/11

Answer 11

The presence of hydrogen has an impact hameglobin, It reduces the affinity hamelgobin has for oxygen

Question 12

Transport of carbon dioxide 10/11

Answer 12

The HB will release the oxygen

HB+402

Question 13

Transport of carbon dioxide 11/11

Answer 13

The oxygen will now diffuse out the red blood cell and it will diffuse into respiring cells and tissues which will surround the blood vessel