Biology 9700 · AS & A Level · Transport of oxygen and carbon dioxide

Transport of oxygen and carbon dioxide — practice question

When active tissues contain a high concentration of carbon dioxide, oxyhaemoglobin must release oxygen to the tissues. In what form is carbon dioxide carried away from the tissues in the blood?

A1, 2 and 3
B1 and 3 only
C2 and 3 only
D2 only

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