Animals, plants and many other living organisms inhale oxygen to "burn" (oxidize) compounds like sugar into CO2 and water—a ...

A team of scientists have elucidated an ancient mechanism of cellular respiration. To that end, they studied bacteria that feed on the gases carbon dioxide and hydrogen, and turn them into acetic acid ...

Anaerobic respiration occurs without oxygen and much less frequently ... In micro-organisms such as yeast, a uni-cellular (or single cell) fungi, the process of anaerobic respiration is called ...