Question

As level biology describe and explain the importance of oxygen dissociation curve and the bohr shift

Answer 1

In its most simple form, the oxyhemoglobin dissociation curve describes the relation between the partial pressure of oxygen (x axis) and the oxygen saturation (y axis). Hemoglobin's affinity for oxygen increases as successive molecules of oxygen bind. ... Hence the curve has a sigmoidal or S-shape.

Bohr shift describes how the oxygen dissociation curves relates to carbon dioxide [remember GCSE: respiration]. As carbon dioxide and/or acidity increases, the binding affinity of haemoglobin for O2 decreases. ... This is important as it makes supply of oxygen to respiring tissues more efficient.