Which of the following is correct concerning the differences between hemoglobin and myoglobin? A) Both hemoglobin and myoglobin are tetrameric proteins. B) Hemoglobin exhibits a hyperbolic O₂ saturation curve while myoglobin exhibits a sigmoid shaped curve. C) Hemoglobin exhibits cooperative binding of O₂ while myoglobin does not. D) Hemoglobin exhibits a higher degree of O₂saturation at all physiologically relevant partial pressures of O₂than does myoglobin. E) All of the answers are correct.

Question

Quizplus · Accepted Answer

Hemoglobin exhibits cooperative binding of O2, meaning its affinity for O2 increases as more O2 molecules are bound. Myoglobin, on the other hand, does not exhibit cooperative binding and has a hyperbolic O2 saturation curve, indicating a constant affinity for O2 across different concentrations.

Which of the Following Is Correct Concerning the Differences Between