3 Answers. In Great Britain today, the role of the queen is completely ceremonial. She (and whoever comes after her as monarch) has absolutely no actual power. In political science terms, she is the head of state for Great Britain but is not head of government.
Overview. 1  Oxygen-hemoglobin dissociation curve sigmoidal shape is characteristic of positive cooperativity binding of 1 O2 molecule to 1 subunit of deoxyhemoglobin increases affinity for O2 in adjacent subunits. P50 is PO2 at which hemoglobin is 50% saturated â P50 â â hemoglobin affinity for O2 50% saturation achieved at higher-than-normal P50.
Understand the Oxygen Hemoglobin Dissociation Curve with this clear explanation from Dr. Seheult. This is video 1 of 1 on the oxygen hemoglobin dissociation curve (also called oxygen dissociation curve and the oxyhemoglobin dissociation curve).Speaker: Roger Seheult, MD. Clinical and Exam Preparation Instructor. Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine.his is video 1 of 1 on the oxygen hemoglobin dissociation curve (also called oxygen dissociation curve and the oxyhemoglobin dissociation curve).