BC10M: Introductory Biochemistry 2006 Semester 2.

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BC10M Introductory Biochemistry 2006 Semester 2.

• Friday 10 March.
• Lecture 20
• Lipids
• Andrew Pearson

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Lipid function table
Function Examples Where found
Basic unit Fluidity enhancer Saturated fatty acid Unsaturated fatty acid Widespread Biomembranes
Storage of energy Triacylglycerols Fat droplet
Solubility barrier Phosphoglyceride Sphingolipids Biomembranes Biomembranes
Surface protection Waxes Skin, leaves, insect cuticle, honey comb
Hormone Steroid Eukaryots
Fluidity reducer Cholesterol Animal biomembranes
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From Brock
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cis double bonds between carbons 9 10
From Lehninger
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Triacylglycerols a.k.a. triglycerides
From Brock
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From Brock
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From Lehninger
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From Brock
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Asymmetry in biomembrane composition
PC ?choline PE ?ethanolamine PS ?serine PI
?inositol SP sphingolipid
From Matthews van Holde
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From Voet Voet
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From Matthews van Holde
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From Koolman Rohm
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Different models of cholesterol
From Matthews van Holde
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Sterols not drawn to scale!
From Lehninger
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A confusing name!
From Brock
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From Brock
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