Carbon DIoxide does not compete with oxygen-heme binding in hemoglobin. Carbon MONOxide, however, does compete with oxygen in regards to the binding to the heme group, and does have a greater affinity for the heme group than oxygen. If CO2 competed with oxygen for the same binding sites we would all be dead...

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• Gasing Rats Immediately before feeding - Seeves1982, Mon Jan 9 08:44:46 2012
• RE: Gasing Rats Immediately before feeding - Bolitochrome, Mon Jan 9 10:48:34 2012
• Co2 isn't poison - mikebell, Mon Jan 9 11:09:24 2012
• RE: Co2 isn't poison - Seeves1982, Mon Jan 9 11:48:00 2012
• u seem 2 know a lot about it...? - zippy00_99, Mon Jan 9 14:32:32 2012
• RE: u seem 2 know a lot about it...? - DChristensen, Mon Jan 9 15:36:56 2012
• RE: u seem 2 know a lot about it...? - JYohe, Mon Jan 9 17:53:41 2012
• RE: u seem 2 know a lot about it...? - Seeves1982, Mon Jan 9 18:55:51 2012
• RE: u seem 2 know a lot about it...? - pfan151, Mon Jan 9 19:03:28 2012
• RE: u seem 2 know a lot about it...? - Seeves1982, Mon Jan 9 19:11:49 2012
• They are my pets too. - Bolitochrome, Tue Jan 10 11:42:42 2012
• RE: u seem 2 know a lot about it...? - morphed, Tue Jan 10 11:55:19 2012
• RE: u seem 2 know a lot about it...? - Seeves1982, Tue Jan 10 23:25:21 2012
• RE: Co2 isn't poison - BWsPythons, Mon Jan 9 19:34:25 2012
• RE: Co2 isn't poison - Seeves1982, Mon Jan 9 21:47:08 2012
• Obviously - mikebell, Mon Jan 9 23:40:25 2012