Lipids Flashcards
When are lipids called fats?
If they are solid at 20 degrees celsius
When are lipids called oils?
If they are liquid at 20 degrees celsius
What are lipids made of?
fatty acids and glycerol
What is a triglyceride?
A lipid made of glycerol and 3 fatty acids
What are phospholipids made of?
glycerol, 2 fatty acids and a phosphate group
What is the chemical formula for glycerol?
C3H8O3
How many bonds can carbon form?
4
Can carbon make double bonds?
yes
Saturated fatty acids have …….
no double bonds between carbons
Unsaturated fatty acids have ……
at least one double bond between the carbons
monounsaturated fatty acid -
one double bond between carbons
polyunsaturated fatty acid -
many double bonds between carbons.
Why are unsaturated fatty acids often liquids at 20 degrees celsius?
The double bond in an unsaturated fatty acid causes a kink or bend in the chain.
