Hemoglobin and Hemocyanin

Question

Hemoglobin and hemocyanin
A)are both found within blood cells.
B)are both red in colour.
C)are both freely dissolved in the plasma.
D)both transport oxygen.
E)are both found in mammals.

Accepted Answer

Hemoglobin and hemocyanin both have a role in oxygen transport. Hemoglobin is found in red blood cells in vertebrates, while hemocyanin is found in the plasma of some invertebrates such as snails and crabs. They are not both red in color, and hemoglobin is not freely dissolved in plasma. Hemocyanin is not found in mammals.