carbon dioxide and haemoglobin

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bryanwong
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carbon dioxide and haemoglobin

Post by bryanwong » Sat Jan 07, 2012 9:48 am

which is formed when carbon dioxide combines with haemoglobin(some carbon dioxide is carried by haemoglobin)?

my textbook says that,
carboxyhemoglobin is formed ,but i found that carbaminohemoglobin is formed instead on the internet .
which one is correct?

thanks for your answers :D [/size]

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canalon
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Post by canalon » Sat Jan 07, 2012 5:08 pm

Have you looked up the definition of both on Wikipedia for example. It is quite enlightening. And either you are misreading your textbook, or it is flat out wrong...
Patrick

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JorgeLobo
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Post by JorgeLobo » Sun Jan 08, 2012 12:25 pm

I think you are refering to carbon monoxide not carbon dioxide.

bryanwong
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Post by bryanwong » Mon Jan 09, 2012 7:14 am

Wikipedia says that carbaminohemoglobin is formed
but my textbook says that carboxyhemoglobin is formed
they are both referring to the transport of carbon dioxide
(the way that CO2 combines with haemoglobin)

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canalon
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Post by canalon » Mon Jan 09, 2012 11:35 pm

Patrick

Science has proof without any certainty. Creationists have certainty without
any proof. (Ashley Montague)

JohnMessick
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Re: carbon dioxide and haemoglobin

Post by JohnMessick » Mon Jan 23, 2012 4:26 pm

Carbon dioxide combines reversibly with haemoglobin to form carbaminohaemoglobin. Carbon dioxide does not bind to iron, as oxygen does, but to amino groups on the polypeptide chains of haemoglobin.

Thanks a lot.
John Messick

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