Question

question 19
mark this question
which is the haldane effect?
the change in carbon dioxide bound to hemoglobin when partial pressure of oxygen is changed.
the change in oxygen saturation of hemoglobin when oxygen partial pressure is changed.
the change in oxygen saturation of hemoglobin when ph is changed.
the change in oxygen saturation of hemoglobin when temperature is changed.

Explanation:

The Haldane effect specifically refers to the change in the amount of carbon dioxide bound to hemoglobin when the partial pressure of oxygen changes. When oxygen binds to hemoglobin (in the lungs where oxygen partial pressure is high), it causes a conformational change in hemoglobin that reduces its affinity for carbon dioxide, promoting the release of carbon dioxide. Conversely, when oxygen is released from hemoglobin (in tissues where oxygen partial pressure is low), hemoglobin can bind more carbon dioxide.
The second option describes the basic oxygen - hemoglobin dissociation relationship (not the Haldane effect). The third option is related to the Bohr effect (where pH changes affect oxygen - hemoglobin binding). The fourth option (temperature change affecting oxygen saturation) is also not the Haldane effect.

Answer:

The change in carbon dioxide bound to hemoglobin when partial pressure of oxygen is changed.