Managed care An event that is unforeseen, unexpected, and unintended. Neurology See Cerebrovascular accident. Public health An unintentional and/or unexpected event or occurrence that may result in injury or death. RTAs/MVAs are the most common cause of accidental death in developed countries.
Hemoglobin is the oxygen-carrying component in red blood cells.  Hemoglobin is a protein that has an iron molecule. Aside from red  blood cells, there are white blood cells, â¦ which also are important  components of the blood.aking the world better, one answer at a time. In order for cellular respiration to take place, mitochondria must have oxygen. Mitochondria are the building blocks of the cell, and the cell cannot survive without it.
In order to carry on cellular respiration, plant cells need oxygen and a means of disposing of carbon dioxide (just as animal cells do). 1  Each part of the plant takes care of its own gas exchange needs. 2  Although plants have an elaborate liquid transport system, it does not participate in gas transport.