Monomers -> Polymers Lipids Flashcards
1
Q
Lipids
Lipid formation
A
- Lipids are NOT formed by the same type of linear polymerization as proteins, nucleic acids, and polysaccharides
2
Q
Lipids
Lipid Features
A
- Hydrophobic
- Energy storage (fat)
- Membrane structure
- Spesific biological functions such as signal transmission
3
Q
Lipids
Lipid Classification
A
- Fatty acids
- Triacylglycerols
- Phospholipids
- Glycolipids
- Steriods
- Terpines
4
Q
Lipids
Fatty Acids
A
- Components of several other kinds of lipids
- Long unbranched hydrocarbon chain with a carboxyl group at one end
- Carboxyl head = polar
- hydrocarbon chain = nonpolar
5
Q
lipids
Fatty Acids
A
- Saturated fatty acids linear molecules that can pack tightly
- Unsaturated fatty acids one or more double bond so they kink and can not pack as tightly
6
Q
Lipids
Triacylglycerol
A
- Triacylglycerols a glycerol molecule with three fatty acids attached to it
- Glycerol three-carbon alchol with a hydroxyl group on each carbon
- Energy Storage lipid
- fatty acids are linked to glycerol one at a time by ester bonds
7
Q
Lipids
Phospholipids
A
- Phospholipids important to membrane structure because of amphipathic nature
- usually have one saturated and one unsaturated tail
- Phosphate head = hydrophyllic
- Fattyacid tails = hydrophobic
8
Q
Lipids
Glycolipids
A
- Glycolipids contain a carbohydrate instead of a phospholipid
- Glycolipids occour largley on the outter monolayer of the plasma membrane
- Membrane compontents
9
Q
Lipids
Steriods
A
- steriods are derivatives of four-ringed hydrocarbon skeleton
- nonpolar - hydrophobic
- differ from one another by double bond and functional group locations
- most common steriod in animal cells is Cholesterol
- cholesterol is the starting material for synthesis of steriod hormones
10
Q
A
