Columbia Encyclopedia
Search results
303 results found
Krebs cycle
(Encyclopedia)Krebs cycle, series of chemical reactions carried out in the living cell; in most higher animals, including humans, it is essential for the oxidative metabolism of glucose and other simple sugars. The...glyoxylate cycle
(Encyclopedia)glyoxylate cycle: see Krebs cycle. ...citric acid cycle
(Encyclopedia)citric acid cycle: see Krebs cycle. ...tricarboxylic acid cycle
(Encyclopedia)tricarboxylic acid cycle: see Krebs cycle. ...Krebs, Sir Hans Adolf
(Encyclopedia)Krebs, Sir Hans Adolf krĕbz, krĕps [key], 1900–1981, English biochemist, b. Germany, M.D. Univ. of Hamburg, 1925. He taught at Cambridge and at the Univ. of Sheffield and after 1954 was professor ...cycle
(Encyclopedia)cycle, in astronomy, period of time required for the recurrence of some celestial event. The length of a cycle may be measured relative to the sun or to the fixed stars (see sidereal time). A frequent...malic acid
(Encyclopedia)malic acid: see Krebs cycle.succinic acid
(Encyclopedia)succinic acid: see Krebs cycle.urea
(Encyclopedia)CE5 urea yo͝oēˈə [key], organic compound that is the principal end product of nitrogen metabolism in most mammals. Urea was the first animal metabolite to be isolated in crystalline form; its c...Fenian Cycle
(Encyclopedia)Fenian Cycle: see Gaelic literature. ...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-