Lipids Flashcards
What are the three types of lipids
phospholipids
fats
steroids
Building blocks of lipids
fatty acids (C and H chain with -COOH carboxyl ending)
Structure of fats
Glycerol backbone and three fatty acids
Structure of phospholipids
Phosphate group + glycerol + two fatty acids
Polar properties of phospholipid
Polar hydrophilic phosphate head
Non-polar hydrophobic fatty acid tail
Structure of steroids
4 carbon rings with unique side groups
Function of fats
Energy storage
Saturated fats fatty acid chains
Straight chain (no double bonds)
Unsaturated fats fatty acid chains
Bent chain (with double bonds)
Function of phospholipids
Cell membrane made from phospholipid bilayer
Functions of steroids
Signals
Hormones
Cholesterol
Affect fluidity of cell membrane