Fundamental Biochemistry update Fall 2010 part B no notes

Fundamental Biochemistry update Fall 2010 part B no notes -...

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Unit 1- Part 2: Basic Biochemistry
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Elements in Living Organisms
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Bonding in Biomolecules Polar and non-polar covalent bonds Ionic bonds Hydrogen bonds Probably most important in chemistry of life H atom covalently bonded to one electronegative atom is attracted to another electronegative atom Usually oxygen or nitrogen atoms in biology Van der Waals interactions
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Relationship between Molecular shape and function The various types of bonds formed result in molecules that have a characteristic size and shape The precise shape is usually very important to its function in a cell Molecular shape determines how most biological molecules recognize and respond to one another Non-covalent interactions may influence the shape of molecules
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Free Radicals A molecule with an atom containing a single, unpaired electron in it’s outer shell is a free radical Can react with other atoms to “steal” an electron from one of their atoms Creates a new free radical in the donor molecule, setting off a chain reaction O 2 .
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Properties of Water Abundant on Earth and in the universe Special properties due to hydrogen bonding Covers 75% of Earth’s surface Cells are ~60-95% water
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Water is a Polar Compound
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This note was uploaded on 04/05/2012 for the course BIO 231 taught by Professor Nette during the Spring '11 term at Cuyamaca College.

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Fundamental Biochemistry update Fall 2010 part B no notes -...

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