Breathing process The creation of cellular energy Using nutrients such as carbohydrate , fat or protein to carbohydrate digestion , which occurs with creatures of all kinds. This could be breathing Use oxygen or anaerobic . For plant respiration is oxygen. Breathing process has several steps , including steps of glycolysis . Cytosine occurs in the cytoplasm of the cell. Both anaerobic And anaerobic Start by changing the breakdown of nutrients in the form of sugar glucose . To provide power to the net 2 ATP per 1 molecule of glucose sugar . If breathing oxygen to the process . Creation in acetyl coenzyme A Krebs cycle . And transfer electrons to the contiguous occurred in Alexandria . Releases the first 36 ATP per molecule of glucose, glucose while anaerobic respiration . Net energy is only 2 ATP per 1 molecule of glucose sugar .