The ability of hemoglobin to deliver oxygen is enhanced because: A) The partial pressure of oxygen is lower in most tissues than it is in the lungs O B) The metabolic activity in most tissues lowers the pH of the blood C) The metabolic activity of tissues increases carbon dioxide levels OD) All of the above
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- What would be the consequence of a deficiency of hemoglobin in our bodies?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 myoglobinThe ability of hemoglobin to bind oxygen decreases with decreasing oxygen concentration and also decreases with increasing carbon dioxide concentration. What effect do these phenomena have on the delivery of oxygen to tissues?
- What is in hemoglobin that brings oxygen to the different parts of the body?Which of the following situations occurs if a person's blood becomes more alkaline? A. Hemoglobin molecules retain less oxygen per heme group under alkaline conditions than they do at neutral pH or under acidic conditions. B. Hemoglobin molecules give up oxygen more readily under alkaline conditions than they do under neutral pH or under acidic conditions. C. Hemoglobin molecules change shape and begin to lose oxygen molecules. D. Hemoglobin molecules retain oxygen more readily under alkaline conditions than they do at neutral pH or under acidic conditions. E. There is no change in hemoglobin's oxygen-binding affinity under alkaline conditions when compared to blood at neutral pH or under acidic conditions.What gene makes hemoglobin?