Most eukaryotic cells have mitochondria, which produce ATP from products of the citric acid cycle, fatty acid oxidation, and amino acid oxidation. At the mitochondrial inner membrane, electrons from NADH and succinate pass through the electron transport chain to oxygen, which is reduced to water.
The maximum diameter of the lens opening is referred to as its maximum aperture or minimum f-number. The minimum f-number is the smallest f-number that can be selected with the lens. The maximum aperture varies from lens to lens and is included in the lens model name.
Translating visual acuity limitations in terms of minimum image size when viewing takes places from 20 feet away would give: For NTSC standard definition TV, minimum image width is 640 x 0.0698, or approximately 45-inch. This gives a maximum viewing distance that is 5.37 times the screen width.