Does the affinity of myoglobin for oxygen change when
oxygen concentration changes?
Im not really sure how to answer this. I know that myoglobin has very strong affinity for oxygen so once myoglobin is in the presence of oxygen it will react right away until it is fully saturated but im sure if that would be dependent on O2 concentration
3 answers
rom my understanding, these curves never truly obtain 100% saturation. Theoretically it can, but 100% saturation is never obtained. Hemoglobin is a protein and oxygen is it's substrate. A protein's affinity for its substrate never changes no matter how much of a substrate a protein is saturated with. There could be ten substrate molecules for one protein or ten protein molecules for one substrate. No matter the numbers of each, a protein's affinity for is substrate does not change.
thank you
Hemoglobin and myoglobin are both proteins and the statement applies to both.
1 answer