co2 transport

Question 1

like o2, co2 first does what when it enters the blood?

Answer 1

dissolves in plasma

Question 2

co2 is more soluble in plasma than o2, by how much?

Answer 2

5%

Question 3

as co2 dissolves in plasma, it moves down its partial pressure gradient from where?

Answer 3

plasma into the cytosol of rbc

Question 4

where does co2 bind to within the hemoglobin proteins?

Answer 4

the N-terminal amino group

Question 5

hemoglobin bound to co2 is called

Answer 5

carbaminohemoglobin

Question 6

what kind of Hb had a higher affinity for co2?

Answer 6

deoxygenated Hb

Question 7

deoxygenated Hb has a higher affinity for co2 than oxygenated, what is this called?

Answer 7

haldane effect

Question 8

what increases affinity for co2 and promote co2 binding?

Answer 8

oxygen unloading

Question 9

what decreases affinity for co2 and promote co2 release?

Answer 9

oxygen loading

Question 10

what happens to the remaining 90% of CO2? what catalyzes this?

Answer 10

converted to hydrogen and bicarbonate ions; carbonic anhydrase

Question 11

CA is found in high lvls within red blood cells, skeletal muscles, lungs (t or f) true

Answer 11

true

Question 12

what is co2 and h2o first converted to?

Answer 12

carbonic acid then bicarbonate ion