Biology Chapter 3

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Anonymous
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5791
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Biology Chapter 3
Updated:
2010-02-01 00:25:21
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College Biology
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Chapter 3 Definitions
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  1. What are the bonding properties of carbon?
    Carbon can share electrons with as many as four other atoms.

    • It can have the shape of
    • -chains
    • -rings
    • -side branches
  2. Organic Molecule Characteristics
    • -Always contain carbon bonded to other atoms
    • -Always covalent bonding
    • -Often quite large, with many atoms
    • -Usually associated with living organisms
  3. Inorganic Molecule Characteristics
    • -Usually contain positive and negative ions
    • -Usually ionic bonding
    • -Always contain a small number of atoms
    • -Often associated with nonliving matter
  4. Isomers
    Organic molecules with identical molecular formulas, but a different arrangement of atoms.
  5. Macromolecules
    • -Carbohydrates
    • -Lipids
    • -Proteins
    • -Nucleic Acids
  6. Polymers
    The largest macromolecules which are made up of many subunits called monomers.
  7. Dehydration Synthesis
    The process of building polymers.
  8. Hydrolysis
    the process of breaking down polymers.
  9. Major Organic Molecules
    Molecules that contain carbon in combination with hydrogen.
  10. What are the 4 major groups of organic molecules?
    • Carbohydrates
    • Lipids
    • Proteins
    • Nucleic Acids
  11. Carbohydrates
    -contain C,H, & O

    -function to store energy and provide support

    -building blocks (monomers) are monosaccharides

    -C6H12O6
  12. Monosaccharides
    Simple sugars containing 3-7 carbons

    C,H,O ratio is 1:2:1
  13. Disaccharides
    Simple sugars composed of 2 monosaccharides linked together by dehydration synthesis.

    • Common disaccharides:
    • -Maltose
    • -Lactose
  14. Animals store glucose as , and plants store glucose as .
    Glycogen

    Starch

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