Strengthened affinity between oxygen and hemoglobin, or a left shift, occurs as a result of the following condition: acute acidosis high PCO2 elevated temperature decreased temperature
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A right shift in the Oxy-Hb dissociation curve means that hemoglobin has a lower affinity for oxygen relative to a normal curve. It occurs under the conditions of exercise, including increased temperature and lower pH. This shift results from slight changes in the shape of the hemoglobin protein (quaternary structure) that occur because of changes in the interactions of the amino acid side chains when temperature is increased or pH is reduced, among other causes. Therefore, the correct answer is d.) all of the above.
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The graph shows an oxygen dissociation curve for hemoglobin. Based on the graph, what would likely cause the curve to shift to the left, as shown by the dotted plot line? a. a decrease in carbon dioxide, increase in pH, or a decrease in temperature b. an increase in carbon dioxide, increase in pH, or a decrease in temperature c. a decrease in carbon dioxide, decrease in pH, or a decrease in temperature d. a decrease in carbon dioxide, increase in pH, or an increase in temperature
The graph shows an oxygen dissociation curve for hemoglobin. Based on the graph, what would likely cause the curve to shift to the right, as shown by the dotted plot line? a. decreasing carbon dioxide, increasing pH, or decreasing temperature b. decreasing carbon dioxide, decreasing pH, or decreasing temperature c. increasing carbon dioxide, increasing pH or increasing temperature. d. increasing carbon dioxide, decreasing pH, or increasing temperature.
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