lipids Flashcards
1
Q
lipids
A
most common energy-storing molecules and provide twice the energy of carbohydrates
2
Q
fatty acids
(2)
A
- carboxyl group and hydrocarbon chains
- there are saturates, monosaturated and polyunsaturated fatty acids
3
Q
fats
(2)
A
- triglycerides = glycerol and 3 fatty acids
- 3 fatty acids attached to each glycerol backbone= saturated, monounsaturated/ polyunsaturated
4
Q
how are fats formed? what type of reaction takes place? what bonds are formed
(3)
A
- when a glycerol reacts with a fatty acid
- condensation/ dehydration reaction
- ester linkage/bond
5
Q
saturated fats
(3)
A
- contain the maximum number of hydrogen atoms possible attached to the carbon atoms
- have single bonds between carbon atoms
- solid at room temp
6
Q
unsaturated fats
(2)
A
- has one or more double bonds between carbons this causes kinks which decreases van der Waals attraction
- liquid at room temp
7
Q
what is the importance of phospholipids in the cell?
A
they are the primary lipids of a cell membrane
8
Q
polyunsaturated
A
more than one double bond in the C-H chain
