Lipids Flashcards
What is the function of lipids?
Cell membranes
Energy storage
What are the differentiations of lipids?
Fats and oils
What are lipids made up of?
Fatty acids and glycerol
What is the bond between lipids?
Ester bonds is
What is the characteristic functional group at the end of a lipid molecule?
Carboxyl group (-COOH)
What is the displayed formula of glycerol?
H I H - C - OH I H - C - OH I H - C - OH I H
How can fatty acid chains differ?
Length of carbon chain
May be saturated or unsaturated
What is a saturated fatty acid?
Only contains single covalent bonds (C-C)
Give an example of a saturated fatty acid.
Stearic acid
What is an unsaturated fatty acid?
The carbon chains have one or more double bonds (C=C)
Give an example of a polyunsaturated fatty acid.
Linoleic acid
How is the ester bond formed between fatty acids?
Condensation reaction
Where does the condensation reaction occur (functional groups) between fatty acids?
- COOH (fatty acid)
- OH (glycerol)
What is the name of the condensation reaction?
Esterification
What is the chemical composition of lipid molecules?
Many C-H bonds
Little O