Card 10 / 26: A molecule of hemoglobin ________.
A)
is shaped like a biconcave disk packed almost entirely with iron
B)
contains four glycoprotein units studded with oxygen
C)
consists of four globin proteins, each bound to a molecule of heme
D)
can carry up to 120 molecules of oxygen
Answer:
C) consists of four globin proteins, each bound to a molecule of heme
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