CH 3 - CH.3.MOLECULESOFLIFE Objectives 1.,hydrogen, 2....

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CH. 3. MOLECULES OF LIFE Objectives:     1. Understand the central role of carbon, hydrogen, and oxygen and the importance their      chemical bonding behavior plays in the formation of organic molecules.  2. Understand the mechanisms by which cells modify and make use of organic compounds. 3. Understand how structure and the presence/absence of functional groups are related to a  molecules function. Recognize and identify the six common functional      groups in biological molecules and know the properties they confer when attached      to organic molecules. 4.  Know the general structure and understand the basic role of carbohydrates, lipids,       proteins, nucleotides, and nucleic acids in cells. 5. Understand the basic structure of proteins and why their complex structure is so important to  their function. 6. Recognize and understand the special role that nucleotides and nucleic acids play      in cellular operations, coding, and transfer of genetic information.   Key Terms : organic compounds functional groups alcohols, —OH group monomers polymers enzymes condensation reaction hydrolysis methane seeps methane hydrate carbohydrate sugar monosaccharides ribose deoxyribose glucose oligosaccharide disaccharide sucrose lactose polysaccharide cellulose
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starch glycogen chitin lipids fats fatty acid unsaturated saturated triglyceride phospholipid waxes cutin sterols cholesterol proteins amino acid R group peptide bond amino group carboxyl group polypeptide chain primary structure secondary structure tertiary structure quaternary structure globular proteins hemoglobin glycoproteins lipoproteins fibrous proteins heme glutamate valine sickle-cell anemia denaturation nucleotide ATP coenzymes nucleic acids DNA RNA   Lecture Outline Impacts, Issues: Science or Supernatural?
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A.    Ancient Greeks believed Apollo spoke to them through a young woman called the oracle of  Delphi.         Scientists sought a natural explanation, and discovered that hallucinogenic hydrocarbon  gasses entered the temple through geologic faults. B.    Methane is an example of a hydrocarbon gas found in the atmosphere, where it acts as a  greenhouse gas, below ground, and in huge frozen methane hydrate deposits under the sea  floor.  C.    250 million years ago a huge release of methane from the ocean floor may have contributed  to the Permian extinction—eliminating 95 percent of sea life and 70 percent of terrestrial plants  and animals. D.    Examples of how molecules influence life are all around us. Examining how molecules like 
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CH 3 - CH.3.MOLECULESOFLIFE Objectives 1.,hydrogen, 2....

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