1- Carbon dioxide is carried in the plasma, on hemoglobin, and as bicarbonate ions. What are the...

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Medical Sciences

1-
Carbon dioxide is carried in the plasma, on hemoglobin, and asbicarbonate ions. What are the percentages of each?
Plasma
hemoglobin
bicarbonate
2- Why is there no N₂ in your blood even though it isthe dominant gas in the atmosphere?
3-
Explain the significance of the 2 major regionsof the oxygen saturation/desaturation curve, i.e., the flatregion & the steep region. 1. whatare their ranges? 2. what is Hb's job? 3. at what locations? 4.what is happening with regard to Hb's P_O2 sensitivity?(Hb = hemoglobin)
4-
What exactly is the Bohr effect?

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3.6 Ratings (470 Votes)

Ans1A small portion of the CO2 is transported in the dissolvedstate to the lungs Recall that the PCO2 of venous blood is 45 mmHg and that of arterial blood is 40 mm Hg The amount of CO2dissolved in the fluid of the blood at 45 mm Hg is about 27 mldl27 volumes percent The amount dissolved at 40 mm Hg is about24 milliliters or a difference of 03 milliliter Therefore onlyabout 03miilliliter of CO2 is transported in the dissolved form byeach 100 milliliters of blood flow This is about 7 percent of all the CO2 normallytransportedTRANSPORT OF CO2 IN THE FORM OFBICARBONATE IONreaction of Carbon Dioxide with Water inthe Red Blood Cells due to Effect of Carbonic Anhydrase Thedisolved CO2 in the blood reacts with water to form carbonic acidthe carbonic acid formed in the red cells H2CO3 dissociates intohydrogen and bicarbonate ions H and HCO3reversible combinationof CO2 with water in the red blood cells under See Answer

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