Direct activity of CO2 is a result of binding to which molecular feature?
A) the heme group
b) the N-terminal ends of the 4 polypeptide chains
c) the central cavity
d) the proximal His
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A) the home group....
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Heme*
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ANSWER:-
A)The heme group .
The site at which oxygen binds to both hemoglobin and myoglobin is the heme . At the center of the heme is an Fe(II) atom. Four of the six coordination sites around this atom are occupied by nitrogen atoms from a planar porphyrin ring.
A)The heme group .
The site at which oxygen binds to both hemoglobin and myoglobin is the heme . At the center of the heme is an Fe(II) atom. Four of the six coordination sites around this atom are occupied by nitrogen atoms from a planar porphyrin ring.
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