Can someone help me answer this question?
I think it is B. Am I correct? If I am not, please would you mind explaining your answer and also if possible why the other answers would be incorrect.
- ArgentLv 78 months agoFavourite answer
The answer is C. Oxygen is indeed poorly soluble in water, so it needs something to hold it in solution (in the blood) until it is needed by the cells. Hemoglobin provides the temporary holding power.
(Other answers: the lung is a very good gas exchanger; oxygen diffuses fairly quickly in the tissues; the partial pressure of oxygen is just fine for the lungs that are evolved to handle it at that pressure; and free oxygen does not react with the normal blood components.)