Answer: Mitochondria
Explanation: Mitochondria is an organelle responsible for cellular respiration which is the break down of Simple sugars into carbon dioxide,water,ATP( adenosine trisphosphate).
It has a double membrane,known as the power House of the cells found in the cytoplasm of most Eukaryotic organisms.The number of Mitochondria found in an organism varies according to the Oxygen requirements of that organism. In human liver contains about 2000 Mitochondria,the Red blood cells do not contain Mitochondria.
Leukotrienes are part of a class of biologically active compounds that occur naturally in the white blood cells or the leukocytes. These compounds functions in the pathogenesis of inflammation. They trigger the contraction of the smooth muscles located in the bronchioles. Excess amounts of this substance is a cause of the inflammation during asthma and in allergic rhinitis.