Biology Quiz 1

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Author:
hazelharlston89
ID:
93362
Filename:
Biology Quiz 1
Updated:
2011-07-08 00:23:04
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Janus Quiz
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Description:
Human Biology Quiz 1 questions. Wright College, P.Janus
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  1. 3 subatomic particles

  2. Protons
    • Positively charged
    • Located in the nucleus
  3. Neutrons
    • Neutral in charge
    • Located in the nucleus
  4. Electrons
    • Negatively Charged
    • Located in the outer shells of the nucleus
  5. Organic
    • carbon based
    • only in covalent bonds
  6. Inorganic
    • non-carbon based
    • covalent and ionic bonds
  7. pH scale
    • measurment of hydrogen concentration
    • 7: neutral
    • 1-6: acid
    • 1-3: strong
    • 4-6: weak
    • 8-14: base
    • 8-11: weak
    • 12-14: strong
  8. Carbohydrates
    Sugar
  9. monosaccharides
    • single sugar unit
    • ex.) glucose - primary energy molecule that converts ATP
  10. Disaccharides
    • double sugar units
    • formed during hydration reactions
    • ex. broken down sucrose (table sugar - fructose and glucose)
  11. Polysaccharides
    • complex sugar units
    • ex. starch - found in plants (storage molecules of glucose)
  12. Lipids
    Fatty Acids
  13. Triglycerides
    • composed of 3 fatty acids
    • function: energy reserve and fat insulation
  14. Phospholipids
    • 1 glycerol unit and 1 phosphate group
    • function: transport and structure
  15. Steroid
    • 4 rings of fatty acids
    • function: break down fat
  16. DNA


    function: stores genes and transfers genetic material
  17. ATP


    function: energy molecule
  18. cAMP


    function: signal molecule
  19. Essesntial
    • not produced in humans
    • recieved from outside sources
  20. Nonessential
    produced in humans
  21. Hydrolysis
    when water (H2O) is removed or created
  22. Hydration
    when water (H2O) is added or destroyed
  23. Saturated
    single carbon bonds that break apart easily
  24. Unsaturated
    multiple carbon bonds that form strong and stable molecules

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