2006-10-11 16:25:48 · 7 answers · asked by Valicia C 1 in Health ➔ General Health Care ➔ Other - General Health Care
Oxidation:
Hemoglobin is the quantitatively predominant heme containing protein in mammals. Its primary function is to bind, transport, and release molecular oxygen. Hemoglobin bound iron remains in the ferrous state during oxygen binding, transport and release. When hemoglobin bound iron is oxidized to ferric iron, it cannot transport oxygen. Oxidized hemoglobin is called methemoglobin.
Blood-containing methemoglobin is a dark reddish brown color.
SO I was right about it being because of oxidation ....
2006-10-11 16:32:42 · answer #1 · answered by Yentl 4 · 0⤊ 0⤋
When there is lac of oxygen in blood & the carbon di oxide concentration of blood increases a compound formed called carbiamino heamoglobin, the color of the compound is black brownish. Due to this compounf blood looks brown
2006-10-11 16:38:49 · answer #2 · answered by apurba s 3 · 0⤊ 1⤋
Blood turns dark when it's lacking oxygen. Meaning it's old or not being circulated.
2006-10-11 16:29:26 · answer #3 · answered by sassified19 2 · 0⤊ 1⤋
Old Blood that your body is getting rid of.... It is normal!!
2006-10-11 16:30:07 · answer #4 · answered by Niecy 3 · 0⤊ 0⤋
the oxygen, just like paint it darkens when it dries.
2006-10-11 16:29:55 · answer #5 · answered by cruisingalong 4 · 0⤊ 0⤋
It does that when it breaks down or when it is heated.
2006-10-11 17:17:27 · answer #6 · answered by Buzz s 6 · 0⤊ 0⤋
air,maybe to much iron
2006-10-11 16:30:07 · answer #7 · answered by purpleaura1 6 · 0⤊ 0⤋