The hemocyanin of arthropods and molluscs differs from the hemoglobin of mammals in that
A)the oxygen dissociation curve for hemocyanin is linear.
B)hemocyanin carries more carbon dioxide.
C)hemocyanin is bound to copper rather than iron.
D)the protein of hemocyanin is not bound to metals.
E)hemocyanin is bound to potassium ions.

Question

Quizplus · Accepted Answer

Hemocyanin is bound to copper instead of iron like hemoglobin. This difference leads to the characteristic blue color of hemocyanin as copper reflects blue light. Hemocyanin also tends to have a linear oxygen dissociation curve, meaning it releases oxygen more consistently over a wider range of partial pressures compared to hemoglobin.

The Hemocyanin of Arthropods and Molluscs Differs from the Hemoglobin