Bio Chem- Lipids Flashcards
Understand the basics of lipids
What are lipids
fats and oils
Are lipids polar
No b/c fats and oils do not dissolve in water
When you extract lipids from animals what do you get
fat
When you extract lipids from plants what do you get
oil
What do lipids contain
C,H,O
Are lipids hydrophobic or hydrophilic
Lipids are hydrophobic
What are the functions are lipids
store energy
insulation
make up membranes
What is the structure of lipids
Head - glycerol
Tail - fatty acids
What is the monomer of lipids
1 glycerol backbone
3 fatty acids
4 in total
What are the types of lipids
Triglycerides
Phospholipids
Steroids
what does a carboxly group look like
O
||
HO-C
What makes a triglyceride
They must be dehydrated
What are phospholipids
have a polar hydrophilic head and
non-polar hydrophobic tails
Where are phospholipids founds
cell membrane
The nonpolar hydrophobic tails are …
hydrocarbon tails
Saturated Fats
full of hydrogen solid at room temp all straight bonds all single bonds straight bonds linear stack easily
Unsaturated Fats
not full of hydrogen liquid at room temp at least one double bond kinked or bent not straights bonds not linear does not stack easily
What is dehydrogenation
a process where vegetable oil is converted to a saturated fat
bent to a linear
What is a trans fat
when converting a saturated fat some become linear but don’t break the double bond
They are really bad
What are steroids
function as hormones
no fatty acids
C& H are in rings
What is cholesterol
in cell membrane
nonpolar
type of steroid
when they build up they block passageways in arteries
