question_answer

During oxygen transport, the oxyhaemoglobin at the tissue level liberates oxygen to the cells because in tissue:   

A) \[{{O}_{2}}\] concentration is high and \[C{{O}_{2}}\] is low.

B) \[{{O}_{2}}\] concentration is low and \[C{{O}_{2}}\] is high.

C) \[{{O}_{2}}\] tension is high and \[C{{O}_{2}}\] tension is low.

D) \[{{O}_{2}}\] tension is low and \[C{{O}_{2}}\] tension is high.