Chapter 3 - College Biology (Pg.5)

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Last updated 11:03 PM on 8/27/26
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10 Terms

1
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Omega Fatty Acids

  • “Essential” = body can’t synthesize

  • Omega 3 is most common for humans


2
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Benefits of Fats

  • Long term energy storage

  • Vitamin uptake

  • Insulation


3
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Waxes

  • Long fatty acid chains

  • Long alcohols


4
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Very Hydrophobic (waxes):

Good for plant cuticles, bird feathers, etc.

5
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Phospholipids

Major component of cell membranes

6
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Hydrophilic Head (phospholipids)

  • Phosphate group

  • Glycerol


7
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Hydrophobic Tails (phospholipids)

  • One saturated FA

  • One unsaturated FA


8
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“Amphipathic” (phospholipids)

  • Part polar

  • Part non-polar


9
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Structure (steroids)

  • 4 carbon rings

  • Sometimes have a short tail

- like cholesterol and cortisol


10
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Function (steroids)"

Chemical messengers