Rucete ✏ Biology In a Nutshell
Lipids In a nutshell
It is hydrocarbon-based molecules that are hydrophobic.
1 Triglycerides
1 These are fats and oils
2 Glycerol + 3 fatty acid(hydrocarbon with a carboxyl group(-COOH))
3 Saturated fatty acid : there was a single bond between carbon atoms
4 Monounsaturated fatty acid : there is one double bond.
5 Polyunsaturated fatty acid : there are two or more double bonds
2 Phospholipid
1 In Triglycerides, one of the fatty acid chains was replaced by a phosphate group(-PO₃²⁻).
2 It consists of a phosphate group and one or two fatty acids and two alcohols.
3 Phospholipid's tail is nonpolar and its head is hydrophilic.
4 It is a double structure in which the head is outward and the tail is inward.
3 Steroids
1 Cholesterol : it is a component of the cell membrane
2 Hormones : such as testosterone and estrogen
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Biology in a nutshell