Lipids Flashcards
1
Q
What are the two types of lipid?
A
Triglyceride and Phospholipids
2
Q
What is the structure of a triglyceride?
A
3 fatty acids
1 glycerol molecule
Ester bonds between them
3
Q
What’s the difference between unsaturated and saturated fatty acids?
A
Unsaturated is a C=C
Saturated is a C-C
4
Q
What is the structure of a phospholipid?
A
2 fatty acids
Glycerol molecule
Phosphate molecule
5
Q
Properties of triglycerides
A
Energy storage molecules
Contain ester bonds
Insoluble in water
Non polar
6
Q
Properties of phospholipids
A
Makes up cell membranes
Hydrophilic and hydrophobic
Contains phosphate
2 fatty acids
Polar
7
Q
Test for lipids
A
Emulsion test
Add ethanol to test tube and shake
If milky emulsion forms then lipids are present.
