Question

Mr. Jones has a blood pH of 7.00(normal is higher) and a temperature of 100.5°F. His oxygen-hemoglobin dissociation curve would

A. shift to the right, causing more O2 to be released to his cells
B. shift to the left, allowing less O2 to be released to his cells
C. show no change, allowing the O2 concentration to remain stable

Answer 1

Mr. Jones's lower blood pH and increased body temperature result in a rightward shift of the oxygen-hemoglobin dissociation curve, indicating more oxygen will be released to his cells.

Step-by-step explanation:

The question pertains to understanding the oxygen-hemoglobin dissociation curve and the effects pH and temperature have on the curve. When the pH of the blood decreases, becoming more acidic, or when body temperature increases, the affinity of hemoglobin for oxygen is reduced. This phenomenon is known as the Bohr effect, which promotes oxygen dissociation from hemoglobin at lower pH levels. Consequently, the curve shifts to the right, which indicates that more oxygen is released to the cells.

In the given scenario, Mr. Jones has a blood pH of 7.00 (which is lower than normal, indicating acidity) and a higher body temperature of 100.5°F. These conditions both contribute to a rightward shift of the oxygen-hemoglobin dissociation curve, meaning option A is correct: the curve would shift to the right, causing more O2 to be released to his cells.