Bis102_Hilt_SummerSession22003_Midterm2

Bis102_Hilt_SummerSession22003_Midterm2 - 1 of 2 BIS 102...

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1 of 2 BIS 102 Name ________________________________________ Spring, 2003 Last First K. Hilt Second Midterm Score (100): ___________ 1. (13 pts.) How many moles of O 2 will be released if a liter of blood containing 37 g of hemoglobin is transferred from 65 torr, pH 7.6 to 15 torr, pH 7.2? Hemoglobin has a molecular weight of 68,000. Show all calculations 2. (20 pts.) Identify the allosteric effector that causes the shift in curves pictured in question #1. Give its complete name (i.e. positive, homotrophic, etc.). Then give a detailed explanation, at the molecular level, of why the curve pictured in question #1 shifts to the right. Where does this allosteric effector bind? Why does its binding shift the curve to the right? 3. (7 pts.) On the above graph, in question #1, sketch in carefully the O 2 binding curve expected for myoglobin at pH 7.2. Label the curve “Mb”. Then sketch in the curve for Mb at pH 7.2 in the presence of 25% saturating carbon monoxide. Label this curve “Mb + CO”. 4. (20 pts.) What would the elution profiles look like for the first three cycles of Edman chemistry
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This note was uploaded on 06/07/2008 for the course BIS 102 taught by Professor Hilt during the Winter '08 term at UC Davis.

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Bis102_Hilt_SummerSession22003_Midterm2 - 1 of 2 BIS 102...

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