Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd

تمرين 21

The red-pigmented oxygen transporting protein found in mammals is ____ , which contains the metal ____ , and the blue-pigmented oxygen protein in spiders, snails, and lobsters is ____ , which contains the metal ____.
A) hemoglobin; iron; hemocyanin; copper
B) hemocyanin; iron; hemoglobin; copper
C) hemoglobin; copper; hemocyanin; iron
D) hemocyanin; copper; hemoglobin; iron