Unit 7 - Lipids

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7 Terms

1
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Where does beta oxidation occur?

Mitochondrion

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Where does biosynthesis occur?

Cytoplasm

3
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Are dietary lipids hydrophobic or hydrophilic?

hydrophobic

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Is our digestive environment hydrophobic or hydrophilic?

hydrophilic

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pH in digestive environment

low pH

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How do dietary lipids and the digestive environment connect/interact?

  1. Physical mixing - peristalsis → increased SA of lipids with H2O (enzymes)

  2. Emulsification - add in “natures soap” (bile)

  3. Phospholipase enzymes - hydrolyze ester linkages in TAG → uptake in small intestines

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bile salts

derived from cholesterol, only mechanism to dispose of XS cholesterol, synthesized in liver and stored in gall bladder