What is the term for the phenomenon where hemoglobin binds to oxygen in a cooperative manner, resulting in a sigmoidal oxygen-hemoglobin dissociation curve?

A Allosteric effect
B Cooperative binding ✓
C Heme-heme interaction
D Oxygen-hemoglobin equilibrium

Explanation

Cooperative binding refers to the phenomenon where the binding of one oxygen molecule to hemoglobin increases the affinity of the other subunits for oxygen, resulting in a sigmoidal oxygen-hemoglobin dissociation curve.

Source

Guyton and Hall Textbook of Medical Physiology
Hematology Hematology: Hemoglobin and Oxygen Transport Hematology: Hemoglobin and Oxygen Transport Medium MEDICAL Confidence: high