Calculate the fraction saturation of myoglobin when the partial pressure of oxygen is 25 torr. Assume the p50 of myoglobin is 3 torr.
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1. Calculate the fractional saturation of myoglobin when pO2 = (a) 1 torr; (b) 10 torr, and (c) 100 torr. When pO2 = 2.8 torr, myoglobin is half-saturated (Y = 0.5). 2. Hemoglobin is 50% saturated with oxygen when pO2 = 26 torr. If hemoglobin exhibited hyperbolic binding (as myoglobin does) with 50% saturation at 26 torr, what would be the fractional saturation when pO2 = 30 torr and 100 torr?
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What fraction of myoglobin molecules are bound to O2 when pO2 is 0.74 kPa? P50 = 0.26 kPa for myoglobin. (Hint: "fraction" means your answer should be between 0.0 and 1.0, rather than a percentage)
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