Lipids Flashcards
Unsaturated fats are what shape and why?
They are bent because they have a C molecule double bonded to a C
Why don’t lipids dissolve in water?
They are non polar
Saturated fats are what shape and why?
Straight because of the single bonds between carbon atoms
Unsaturated fats come from
Plants and fish
Saturated fats come from
Most animals
Saturated fats are what state at room temp
Solid
Unsaturated fats are what state at room temp
Liquid
Bond between glycerol and fatty acid chain is called an
Ester linkage
Steroids contain how many hydrocarbon rings?
4
Phospholipids are used mainly for
Structural support ( hydrophobic tail hydrophilic head form to create barrier) of the cell membrane
Waxes are formed through a condensation reaction between
Fatty acids and alcohol
What 4 functions do Lipids have
Long term energy storage, protection and structure of organs,some hormones, and insulation
Phospholipids are composed of
2 fatty acid chains
A glycerol backbone
Phosphate and nitrogen group(make up the hydrophilic head)
Triglycerides are composed of
3 fatty acid chains
A glycerol backbone
Which type of fat is most difficult for your body to break down and why?
Saturated fats, as there is an increased about of hydrogen bonding (IMF) between linear fatty acid chains. Makes them solid at room temperature.
