Chapter 4 notes

Chapter 4 notes - Amber Owens Biology Chapter 4 notes...

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Amber Owens Biology Chapter 4 notes 8/28/07 Carbon and the Molecular Diversity of Life 1. Carbon-The backbone of biological molecules 1. Although water is the universal medium for life on Earth, living organisms, including plants and animals, are made up of chemicals based mostly on the element carbon 2. Carbon enters the biosphere through plant actions which turn CO 2 in the atmosphere into molecules of Carbon. 3. Of all chemical elements, carbon is unparalleled in its ability to form molecules that are large, complex, and diverse. 3.1.This has made possible the diversity of living organisms on earth. 4. Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur, and Phosphorus are the common ingredients of Proteins, DNA, carbohydrates, and other life properties. 2. Organic Chemistry is the study of carbon compounds 1. Compounds containing carbon are said to be organic, and the branch of chemistry that specializes in the study of carbon compounds is called organic chemistry. 2. Organic compounds can be simple such as methane (CH 4 ) to huge proteins with 10,000’s of Daltons. 3. Most organic compounds contain hydrogen atoms in addition to carbon atoms. 4. The overall percentages of C,H,O,N,S,P are quite uniform among living organisms. 5. Different species of organisms are distinguished by variations in their organic molecules. 6. Swedish chemist Jons Jakob Berzelius made the distinction between organic compounds (living organisms) and inorganic compounds (nonliving world). 7.
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Chapter 4 notes - Amber Owens Biology Chapter 4 notes...

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