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9 Cards in this Set
- Front
- Back
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Most blood oxygen is transported in chemical combination with:
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Hemoglobin in the erythrocytes (reb blood cells- RBC's)
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Hemoglobin (Hb), is a conjugated protein consisting of __ ______ ______ , each of which is combined with a porphyrin complex called_____:
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4 linked polypeptide chains; called heme
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The 4 polypeptide chains of HB are coiled together into a ___ ____ structure, the shape of which determines its ______ for oxygen:
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Ball like;
affinity |
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Each heme complex contains a centrally located:
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ferrous iron ion (Fe 2+)
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When hemoglobin is not carrying oxygen, it exhibits characteristics of:
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A weak acid
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When all 4 polypeptide chains are paired, the results is:
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Oxygenated hemoglobin
"oxyhemoglobin" |
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HBO2:
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- Oxyhemoglobin
(oxygenated hemoglobin within the total capacity of hemoglobin) |
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CaO2:
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Total oxygen content of the blood
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CaO2: (formula):
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(PaO2 x 0.003) +
(Hb x 1.34 x SaO2) = ___ % ml/dl |
