Explain how acute exercise would challenge the delivery ofoxygen and release of carbon dioxide as well as how acute exercisemay actually enhance the delivery and release of oxygen at thetissues via an explanation of shifting of the oxyhemoglobindissociation curve, etc. Make sure to include informationabout hemoglobin and myoglobin structure and a full explanation ofthe sigmoidal shape of the dissociation curve (i.e. loading andunloading portions).