Four primary regions are the brainstem, the cerebellum, the cerebrum, and the cerebral cortex. Each brain region is responsible for a variety of functions, and injury to any of these regions impairs specific functions.
Cellular respiration is a pathway that organisms use to generate energy. Oxygen is required and is used to break down nutrients, like glucose sugar. The nutrients are broken down to generate ATP (energy) and carbon dioxide and water (waste). Organisms from all kingdoms of life can use cellular respiration including bacteria, archaea, plants, protists, animals, and fungi.
Aerobic respiration is the one that repuire oxygen for metabolism and cannot live without it,example such as pneumonia.many of these bacteria cause respiratory illnesses. Anaerobic is the one that do NOT require oxygen.There are also two types of Anaerobic respiration,Obligate and Facultative.