Fuel for Respiration“Fuel” for Respiration  E.g. starch, glucose, fructose, and sometimes amino acids, organic acids or fats. ➢ We will focus on respiration of monosaccharides (e.g. glucose). ➢ Polysaccharides (e.g. starch) first need to be broken down into monosaccharides. ➢ Fats and amino acids enter the respiratory pathway at different points