Physiology Respiratory System Pa 3 dccda429 C02 is carried in blood mainly by: A Dissolved form B Carboxy-Hb C Bicarbonate form D carbamino-compounds High-Yield Explanation C02 transpo occurs in 3 forms : 1. Bicarbonate form (70%) 2. Carbamino compounds (20-25%) 3. Free/dissolved in plasma (5-7%)