Question

Choose the correct answer from the alternatives given.
Which of the following is not a means by which oxygen and/or carbon dioxide are transported in the bloodstream of vertebrates?

• A. As oxyhaemoglobin
• B. As hydrogencarbonate ions
• C. In solution in the plasma
• D. Erythropoietin

Answer 1

The correct option is D Erythropoietin

Carbon dioxide is transported in the blood from the tissue to the lungs in three ways: (i) dissolved in solution in the plasma; (ii) buffered with bicarbonate (i.e as hydrogen carbonate ions) and (iii) bound to proteins, particularly hemoglobin. So, the correct option is 'Erythropoietin'.