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.
Sometimes albite grows in lamellaes in microcline crystals, creating a very distinct pattern. The microcline is then called perthite or microcline-perthite. It is created when albite that is soluble in microcline at higher temperatures falls out of the crystal structure when the temperature is lowered, concentrating in stripes through the crystal. Locations : A very common mineral which occurs in many Swedish pegmatites, often as perthite. VarutrÃ¤sk, VÃ¤sterbotten.