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.
Cellular Respiration, process in which cells produce the energy they need to survive. In cellular respiration, cells use oxygen to break down the sugar glucose and store its energy in molecules of adenosine triphosphate (ATP). Cellular respiration is critical for the survival of most organisms because the energy in glucose cannot be used by cells until it is stored in ATP. Cells use ATP to power virtually all of their activitiesâto grow, divide, replace worn out cell parts, and execute many other tasks.