Lipid Structure Fats, Oils, Waxes Provide energy for cells, cell structure, insulation – Lipids &...
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Transcript of Lipid Structure Fats, Oils, Waxes Provide energy for cells, cell structure, insulation – Lipids &...
Lipid Structure• Fats, Oils, Waxes• Provide energy for
cells, cell structure, insulation– Lipids & Proteins
compose the cell membrane
– Cholesterol: gives cell membrane flexibility
Lipid Structure• Fats, Oils, Waxes• Provide energy for cells, cell
structure, insulation– Lipids & Proteins compose the cell
membrane– Cholesterol: gives cell membrane
flexibility
• Structure (2 parts):– “Head” = glycerol– “Tails” = fatty acids
• Monomer: Fatty Acid• Polymer: Lipid
Glycerol molecule
Saturated Fats
• Long chain of C-C single bonds• Each C is “saturated” with H atoms• Solid at room temps• Very common in animal fats
Lard
Unsaturated Fats
Coconut oil Olive oil
• Long chain of C bonds (some double bonds)• Causes the chain to be crooked
• Unsaturated: Less space for H atoms• Liquid at room temps• Plant oils
Saturated vs. Unsaturated1 2 3 4 5 6 7 8
9
18
17 16 15 14 13 12 11 10
1 2 3 4 56
78
916
15 14 13 1211
10
The double bond reduces the need for more H atoms to stabilize the molecule.
Normally, blood flows freely through a vein
Blood veinRBC
Too much saturated fats…
Blood veinRBC
RBC
RBCRBC
Cholesterol & saturated fatsReduced circulation…Blood clots…High blood pressure
RBC
RBCRBC
RBC
RBCRBC
RBC
RBCRBC
RBCRBC
RBC
RBC
Cholesterol levels
Kobe Kuiz
1) What are the two parts of a lipid called?2) Which part is the “head”? Which part are the
“tails”?3) How do small fatty acids and glycerol molecules
bond to make a lipid?4) How do saturated and unsaturated fatty acids
differ?5) Which lipid gives cells their flexibility?6) Why are saturated fats less healthy?