<prompt> In plasma, carbon-di-oxide is mainly transported as: RepeatDissolved CO2HCO3-Carboxy haemoglobinCarbamino haemoglobin  <response>: Ans: B HCO3- Ref: Pal GK. Transport of gases in blood. In: Textbook of medical physiology. Ahuja publishing house. 2007: 91: 733.Explanation:Carbon Dioxide Transport in Blood1. HCO3- in plasma and in RBCs - 702. Formation of carbamino compounds with plasma protein 233. Dissolved form 7 