Multiple Choice
Which part of a hemoglobin molecule binds to a molecule of O2?
A) the surface of an α globin chain
B) the surface of a β globin chain
C) the iron atom in the center of a heme group
D) the copper atom wedged between an α and a β globin chain
E) the hydrophobic pocket between two α chains
Correct Answer:

Verified
Correct Answer:
Verified
Q44: Protruding papulae on the surface of echinoderms
Q45: What respiratory adaptation was important for the
Q46: Where a given species of vertebrate lives
Q47: What is the order of structures or
Q48: The large number of alveoli in lungs
Q49: Every winter,many individuals tragically die in their
Q50: Fick's law of diffusion states that the
Q52: During your dissection of a fish,what structure
Q53: When is the P<sub>O2</sub> an especially strong
Q54: Air enters human lungs from the mouth