lipids - biochemistry

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9 Terms

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saturated

  • no alkenes or alkynes

  • waxy & solid at room temp

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unsaturated

  • there are double bonds or triple bonds

  • oily & liquid

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polysaturated

have alkenes and alkynes

4
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four types of lipids

  • fats

  • phospholipids

  • steroids

  • waxes

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fats

storage molecule made up of GLYCEROL and FATTY ACIDS

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fatty acids

  • saturated

  • linked to glycerol using three dehydration reactions to form a triglyceride molecule

<ul><li><p>saturated</p></li><li><p>linked to glycerol using three dehydration reactions to form a triglyceride molecule</p></li></ul>
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phospholipids

  • glycerol + 2 fatty acids + phosphate

  • fatty acids & glycerol = non-polar

→ hydrophobic tail

  • phosphate & choline = polar

→ hydrophilic head

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steroids

  • complex four ring structure attached to a hydrocarbon chain

  • hormones

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waxes

fatty acid chains attached to an alcohol or ring