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pogonyaev
3 years ago
15

What causes the difference in the color of blood

Health
2 answers:
Vilka [71]3 years ago
6 0

Answer: Pigment molecules binding to oxygen molecules.

AlekseyPX3 years ago
5 0

Oxygenated (arterial) blood is bright red, while dexoygenated (venous) blood is dark reddish-purple. The difference is color results from the electronic state of the iron ion (ferrous vs ferric), which in turn influences the π → π* and n → π* electronic transitions of porphyrin and hence its optical characteristics.

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