1) 7% of carbon dioxide dissolves in ........... and is transported out. a) blood plasma b) tissue fluid c) lymph 2) 23% of carbon dioxide is transported by using this way a) carbonic anhydrase b) blood plasma c) Bicarbonate ion d) carbaminohaemoglobin 3) 70% of carbon dioxide is transported by using this way a) hydrogen ion b) bicarbonate ion c) carbaminohaemoglobin d) blood plasma 4) An enzyme that catalyse the formation of carbonic acid a) carbonic dehydrogenase b) carbonic synthase c) carbaminohaemoglobinase d) carbonic anhydrase 5) Carbonic acid dissociates to form hydrogen ion and .......... a) carbonate ions b) blood plasma c) carbonic anhydrase d) bicarbonate ion 6) Blood enters the lungs from the heart through the,................. a) pulmonary artery b) vena cava c) pulmonary vein d) Aorta 7) Blood vessel which transports oxygenated blood from lungs to heart is..... a) Vena cava b) Pulmonary Vein c) Aorta 8) Haemoglobin combines with oxygen to form......... a) Deoxyhaemoglobin b) Oxyhaemoglobin c) Carbaminohaemoglobin d) carboxyhaemoglobin

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