Structure of epinephrine. Epinephrine is derived from tyrosine, an amino acid. Epinephrine is sometimes referred to as a catecholamine as it contains the catechol moiety. This is a part of the molecule that contains the group C 6 H 4 (OH) 2. Dopamine and norepinephrine are also referred to as catecholamines. They too are synthesized from tyrosine and contain the catechol moiety.
Mount Everest. Standing at about 29,029 feet (8,848 meters), Everest boasts the top spot for the tallest mountain in the world. It is located on the border between Sagarmatha Zone, Nepal, and Tibet, China and is part of the Himalayan Mountain Range.ho Oyu is the sixth highest mountain in the world and stands at about 26,906 feet (8,201meters) high. Like most of the other Himalayan Mountains, it lies between Nepal and China (Tibet). Its name in Tibetan means âTurquoise Goddessâ.
Thirty of the worldâs highest mountains are in the Himalaya. The summit of Mount Everest, at 29,035 feet (8,850 meters), is the highest point on Earth. The tallest mountain measured from top to bottom is Mauna Kea, an inactive volcano on the island of Hawaii in the Pacific Ocean. mountain range is a series or chain of mountains that are close together. The world's tallest mountain ranges form when pieces of Earth's crustâcalled platesâsmash against each other, in a process called plate tectonics, and buckle up like the hood of a car in a head-on collision.