question_answer

Identify the correct statement with reference to trans port of respiratory gases by blood:

A)  Only oxygen is transported by blood.

B)  Only carbon dioxide is transported by blood.

C)  Haemoglobin is necessary for transport of carbon dioxide and carbonic anhydrase for transport of oxygen.

D)  Haemoglobin is necessary for transport of oxygen and carbonic anhydrase for transport of carbon dioxide.