The breakdown of pyruvic acid in the presence of oxygen is called Aerobic respiration.
The linea alba is the band of connective tissue that separates the rectus abdominis.
Cells that have no mitochondria are unable to convert oxygen into energy, found in the form of adenosine triphosphate (ATP). All multicellular eukaryotic organisms, including plants and animals, have mitochondria in some cells, but prokaryotes and some single-cell eukaryotes do not have mitochondria.