Biochemistry Practice Problems IV

Biochemistry Practice Problems IV
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Periodic laboratory monitoring of Hemoglobin A1C has proven useful in assessing the success of chronic therapy of which primary disease state?

Which of the following is a key part of the explanation of why the presence of fetal hemoglobin (HbF) is of benefit to the developing fetus?

T-state hemoblobin has which of the following characteristics?

An explanation for the effect of lower pH levels on O2 affinity for hemoglobin includes:

Which of the following is correct regarding the action of 2,3-BPG on hemoglobin?

Consider the half-reaction A to B with ΔGo’ of -7.0 Kcal/mol. We can couple this reaction successfully with another half-reaction X to Y with a ΔGo’ of +12.3 Kcal/mol. What is the ΔGo’ of the combined reaction Y + B → X + A ?

A reaction at equilibrium has a ΔG of:

Consider the half-reaction A + 2e- → B with Eo’ of +0.82 volts, which we desire to couple with the half-reaction C + 2e- → D with Eo’ of -0.32 volts. Using the coupled redox reaction that would yield B as a reduced product, calculate ΔGo’ for the combined reaction. Note: the Gas Constant, R=1.987 cal/mol-deg, Faraday’s Constant, F= 23.1 Kcal/mol. Use the formula: ΔGo’= -nFΔEo’.

The specific portion or component of the NADH molecule that donates or accepts electrons in the cycling that occurs during redox reactions is:

Which of the following correctly describes a ribozyme, and differentiates it from an enzyme?