When chlorophyll molecules are struck by the sunlight they release 2 electrons that flow into the electron transport chain. to keep the process of photosynthesis running the chlorophyll molecules find replacement electrons. what is the source of these replacement

Answer; splitting of water

Explanation:the first photo system gets excited when it absorbs a photon of light from the sun,it looses electron

.this electron definiency is replaced by the splitting of water through light energy and the splitting resulting in the release of electrons and hydrogen ion,which is involved in the production of ATP

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.