FACTOID # 7: The top five best educated states are all in the Northeast.
 
 Home   Encyclopedia   Statistics   States A-Z   Flags   Maps   FAQ   About 
   
 
WHAT'S NEW
 

SEARCH ALL

FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:

 

 

(* = Graphable)

 

 


Encyclopedia > Paul Karrer

Paul Karrer (April 21, 1889June 18, 1971) was a Swiss organic chemist best known for his work on vitamins. He and Walter Haworth won the Nobel Prize for Chemistry in 1937. April 21 is the 111th day of the year in the Gregorian calendar (112th in leap years). ... 1889 (MDCCCLXXXIX) was a common year starting on Tuesday (see link for calendar). ... June 18 is the 169th day of the year in the Gregorian Calendar (170th in leap years), with 196 days remaining. ... 1971 (MCMLXXI) was a common year starting on Friday (the link is to a full 1971 calendar). ... Organic chemistry is the scientific study of the structure, properties, composition, reactions, and synthesis of organic compounds. ... A vitamin is an organic molecule required by a living organism in minute amounts for proper health. ... Sir Walter Norman Haworth (March 19, 1883 – March 19, 1950) was a British chemist who is best known for his groundbreaking work on ascorbic acid (vitamin C). ... List of Nobel Prize laureates in Chemistry from 1901 to the present day. ... 1937 (MCMXXXVII) was a common year starting on Friday (link will take you to calendar). ...

Contents


Biography

Birth

Karrer was born in Moscow, Russia on April 21, 1889. His parents, Paul Karrer and Julie Lerch, were Swiss nationals. Moscow (Russian: Москва́, Moskva, IPA: ) is the capital of Russia and the countrys principal political, economic, financial, educational and transportation center, located on the river Moskva. ... April 21 is the 111th day of the year in the Gregorian calendar (112th in leap years). ... 1889 (MDCCCLXXXIX) was a common year starting on Tuesday (see link for calendar). ...


Education

In 1892 Karrer's family returned to Switzerland where he was educated at Wildegg and at the grammar school in Lenzburg, Aarau, where he matriculated in 1908. He studied chemistry at the University of Zurich under Alfred Werner and after gaining his Ph.D. in 1911, he spent a further year as assistant in the Chemical Institute. He then took a post as chemist with Paul Ehrlich at the Georg Speyer Haus, Frankfurt-am-Main. In 1919 he became Professor of Chemistry and Director of the Chemical Institute. 1892 (MDCCCXCII) was a leap year starting on Friday (see link for calendar). ... A grammar school is a type of school found in some English-speaking countries; some of which date back to earlier than the 16th century. ... This article is a rough translation of an article in German. ... Aarau Location within Switzerland Aarau is the capital of the Swiss canton of Aargau. ... 1908 (MCMVIII) was a leap year starting on Wednesday (link will take you to calendar). ... Chemistry (derived from alchemy) is the science of matter at or near the atomic scale. ... The University of Zurich (in German: Universität Zürich) is the largest university of Switzerland, in the city of Zurich. ... Alfred Werner (December 12, 1866 - November 15, 1919) was a German Nobel prize-winning chemist. ... Doctor of Philosophy, or Ph. ... 1911 (MCMXI) was a common year starting on Sunday (click on link for calendar). ... Paul Ehrlich Paul Ehrlich (March 14, 1854 – August 20, 1915) was a German scientist who won the 1908 Nobel Prize in Physiology or Medicine. ... Frankfurt am Main [ˈfraŋkfʊrt] is the largest city in the German state of Hesse and the fifth largest city in Germany. ... 1919 (MCMXIX) was a common year starting on Wednesday (see link for calendar). ...


Research

Karrer's early research concerned complex metal compounds but his most important work has concerned plant pigments, particularly the yellow carotenoids. He elucidated their chemical structure showed that some of these substances are transformed in the body into vitamin A. His work led to the establishment of the correct constitutional formula for beta-carotene, the chief precursor of vitamin A; the first time that the structure of a vitamin or provitamin had been established. George Wald worked briefly in Karrer's lab while studying the role of vitamin A in the retina. Later, Karrer confirmed the structure of ascorbic acid (vitamin C) and extended his researches into the vitamin B2 and E. His important contributions to the chemistry of the flavins led to identification of lactoflavin as part of the complex originally thought to be vitamin B2. Carotenoids are organic pigments that are naturally occurring in plants and some other photosynthetic organisms like algae, some types of fungus and some bacteria. ... Retinol, the dietary form of vitamin A, is a fat-soluble, antioxidant vitamin important in vision and bone growth. ... Carotene is a terpene, an orange photosynthetic pigment, important for photosynthesis. ... George Wald (November 18, 1906–April 12, 1997) was an American scientist who is best known for his work with pigments in the retina. ... Human eye cross-sectional view. ... This article deals with the molecular aspects of ascorbic acid. ... Riboflavin Flavin is a tricyclic heteronuclear organic ring based on pteridine whose biochemical source is the vitamin riboflavin. ... Vitamin B is a complex of several vitamins. ...


Published Work

He published very many papers, and received many honours and awards, including the Nobel Prize in 1937. His textbook Lehrbuch der Organischen Chemie (Textbook of Organic Chemistry) was published in 1927, went through thirteen editions, and was published in seven languages. Sir Edward Appletons medal Photographs of Nobel Prize Medals. ...


Marriage and Death

He was married, with two sons. He died June 18, 1971. June 18 is the 169th day of the year in the Gregorian Calendar (170th in leap years), with 196 days remaining. ... 1971 (MCMLXXI) was a common year starting on Friday (the link is to a full 1971 calendar). ...


External links

  • Nobel Prize biography

  Results from FactBites:
 
Paul Karrer - Wikipedia, the free encyclopedia (348 words)
Karrer was born in Moscow, Russia on April 21, 1889.
In 1892 Karrer's family returned to Switzerland where he was educated at Wildegg and at the grammar school in Lenzburg, Aarau, where he matriculated in 1908.
Later, Karrer confirmed the structure of ascorbic acid (vitamin C) and extended his researches into the vitamin B2 and E. His important contributions to the chemistry of the flavins led to identification of lactoflavin as part of the complex originally thought to be vitamin B2.
  More results at FactBites »

 
 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:

 


Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m