Cellular respiration. Molecular oxygen, O2, is essential for cellular respiration in all aerobic organisms. Oxygen is used as an electron acceptor in mitochondria to generate chemical energy. Take a look inside the cell to see these powerhouses of the cell, petite organelles mitochondria, click here.
Legg Perthes Disease in Dogs. Definition. Legg Perthes Disease, also known as aseptic necrosis of the femoral head, Legg-Calve-Perthes Disease, Perthes Disease or simply Leggâs Disease, is a condition that involves spontaneous disintegration and collapse of the top of a dogâs long thigh bone, the femur, which connects the knee to the hip. The cause of this disease is not known.
Perth /ËpÉrÎ¸/ is the capital and largest city of the Australian state of Western Australia. It is the fourth-most populous city in Australia, with an estimated population of 2.02 million (as of 30 June 2014) living in Greater Perth.erth was originally founded by Captain James Stirling in 1829 as the administrative centre of the Swan River Colony. It gained city status (currently vested in the smaller City of Perth) in 1856, and was promoted to the status of a Lord Mayorality in 1929.