Mark any/all that are allosteric regulators of oxygen binding to hemoglobin. Group of answer choices 2,3-BPG H+ CO2
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A:
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Q: Which of the following is true about the proximal histidine of hemoglobin?
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- Discuss the factors that affect oxygen binding in hemoglobin.Which of the following is true about the proximal histidine of hemoglobin? A. It forms a hydrogen bond with bound oxygen. B. It is bonded to the Fe2+ atom coordinated by heme C. It binds oxygen D. It is not consumed in myoglobinHow does an increased level of 2,3-BPG help our bodies compensate through crises of a low availability of external oxygen? Highlight the action of 2,3-BPG on hemoglobin in your answer.
- Explain the three factors that affect the affinity of hemoglobin to oxygenExplain how biphosphoglycerate helps in the delivery of oxygen to the tissues by hemoglobin through cooperative binding.Diagram the methemoglobin reductase pathway and explain its importance in maintaining functional hemoglobin.
- Name the gas that inhibits the transportation of oxygen by haemoglobin.Referring to the loading and unloading of oxygen from hemoglobin (as illustrated in the figure), which of the following statements is correct? Oxygen Dissociation Curve.png Group of answer choices When a person in ventilating at rest, 75% of hemoglobin is still oxyhemoglobin The percent saturation of hemoglobin is higher at higher partial pressures of oxygen A decrease in the pH of the blood would promote unloading oxygen from the hemoglobin All of these are correctWhich of the following stabilize the hemoglobin quaternary structure of low-affinity to oxygen molecules? Group of answer choices a. CO b. CO2 c. bisphosphoglycerate d. H+
- Which of the following statements is FALSE regarding a leftward shift in the hemoglobin-oxygen dissociation curve? A) Affinity for oxygen is increased. B) Oxygen loading onto the hemoglobin is increased. C) Hemoglobin is more saturated at a given PO2. D) It can be caused by a decrease in temperature. E) It can be caused by a decrease in blood pH.Which of the following statements is FALSE regarding a rightward shift in the hemoglobin-oxygen dissociation curve? A) Affinity for oxygen is increased. B) Oxygen loading onto the hemoglobin is increased. C) Hemoglobin is more saturated at a given PO2. D) It can be caused by a decrease in temperature. E) It can be caused by a decrease in blood pH.How does the concentration of 2,3 BPG affect hemoglobin's P50 for oxygen? select the correct answer A) BPG binds to the N-terminus of Hemoglobin's alpha 2 subunit and increase hemoglobin's P50 for oxygen. B) BPG binds to the heme blocking oxygen's ability to bind and lowering hemoglobin's P 50. C) As the BPG increases hemoglobin's P50 for oxygen increase. D) As the BPG increases hemoglobin's P50 for oxygen decreases. E) BPG does not affect hemoglobin's P50 for oxygen
