Cheatography
https://cheatography.com
structure, use, and all that waffle
This is a draft cheat sheet. It is a work in progress and is not finished yet.
Triglycerides
Triglycerides have one molecules of glycerol with three fatty acids attached to it |
Fatty acid molecules have long 'tails' made of hydrocarbons. The tails are 'hydrophobic' (repel water). These make lipids insoluble in water. All fatty acids have the same basic structure, but the hydrocarbon tail varies. |
Triglyceride formation through condensation
A fatty acid joins a glycerol molecule. When the ester bond is formed a molecule of water is released- a condensation reaction. This occurs three times to form a triglyceride
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(Un)Saturated Fatty ACids
Saturated fatty acids dont have any double bonds between their carbon atoms. The fatty acid is 'saturated' with hydrogen |
Unsaturated fatty acids have at least one double bond between carbon atoms, which can cause the chain to kink |
Phospholipids
The lipids found in cell membranes are phospholipids |
They're similar to triglycerides except that one fatty acid molecule is replaced by a phosphate group |
The phosphate group is hydrophilic (attracts water). The fatty acids tails are hydrophobic (repels). |
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