(mÄ«'tÉ-kÅn'drÄ-Én) Plural mitochondria. A structure in the cytoplasm of all cells except bacteria in which food molecules (sugars, fatty acids, and amino acids) are broken down in the presence of oxygen and converted to energy in the form of ATP. Mitochondria have an inner and outer membrane. The inner membrane has many twists and folds (called cristae), which increase the surface area available to proteins and their associative reactions. The inner membrane encloses a liquid containing DNA, RNA, small ribosomes, and solutes.
By Tom Burden, Last updated: 1/25/2017. Recreational boats operating at night are required to display navigation lights between sunset and sunrise. Recent changes to the Inland Navigation Rules make them nearly identical to the International Rules, so we will describe the International Rules to simplify the choices.
Fire Extinguishers (46 CFR 25) U .S . Coast Guard-approved, marine-type fire extinguishers are required on boats where a fire hazard could be expected fromthe engines or fuel system . Extinguishers are classified by a letter and number symbol . The letter indicates the type of fire the unit is designed to extinguish .