Question

The given figures show some processes occuring during gaseous- exchange in the human body. What are the phenomena X and Y called respectively?

• A. X- Hamburger's phenomenon, Y- Bohr's effect
• B. X- Bohr's effect, Y- Haldane effect
• C. X- Haldane effect, Y- Bohr's effect
• D. X- Haldane effect, Y- Hamburger's phenomenon

Answer 1

The correct option is D X- Haldane effect, Y- Hamburger's phenomenon

• The haldane effect describes the phenomenon by which binding of oxygen to hemoglobin promotes the release of carbon dioxide.
• The exchange of bicarbonate (HCO₃⁻) and chloride (Cl⁻) across the membrane of red blood cells is called Hamburger's phenomenon (chloride shift).
• The bohr effect refers to the observation that increases in the carbon dioxide partial pressure of blood or decreases in blood pH results in a lower affinity of hemoglobin for oxygen.

So the correct answer is option D.