Which of the following statements are correct for transport of carbon dioxide?

(i) Nearly 20-25 per cent of CO 2 is transported by RBCs as carbaminohemoglobin.

(ii) 70 per cent CO 2 is carried as bicarbonate.

(iii) About 7 per cent of CO 2 is carried in a dissolved state through plasma.

(iv) Binding of carbon dioxide with hemoglobin is related to the partial pressure of CO 2

(v) pO 2 is a major factor which could affect binding of carbondioxide with hemoglobin.

(vi) When pCO 2 is low and pO 2 is high as in the tissues, more binding of carbon dioxide occurs whereas.

(vii) When the pCO 2 is high and pO 2 is low as in the alveoli, dissociation of CO 2 from carbaminohemoglobin takes place.

(viii) Every 100 ml of deoxygenated blood delivers approximately 4 ml of CO 2 to the alveoli.