Lovely LipidsLovely Lipids
(Or everything you ever (Or everything you ever wanted to know about fat & wanted to know about fat &
its relativesits relatives
Two Types of LipidsTwo Types of Lipids
I. Cholesterol (steroid) FamilyI. Cholesterol (steroid) Family
II. Fat FamilyII. Fat Family
All LipidsAll Lipids
Are Are hydrophobichydrophobic
Are composed entirely of C,H,O Are composed entirely of C,H,O atomsatoms
I. CholesterolI. Cholesterol
Cholesterol & FriendsCholesterol & Friends
Q: Why do we need cholesterol?Q: Why do we need cholesterol?
1)1) Component of animal cell Component of animal cell membranesmembranes
2)2) ??
Q: Why do we need Q: Why do we need cholesterol?cholesterol?
(hint)(hint)
Q: Why do we need Q: Why do we need cholesterol?cholesterol?
Cholesterol is the “Steroid Mama”:Cholesterol is the “Steroid Mama”:
Cholesterol is the precursor ofCholesterol is the precursor of• EstrogenEstrogen
• ProgesteroneProgesterone• TestosteroneTestosterone
• CortisolCortisol
II. TriglyceridesII. Triglycerides(Fats, oils, waxes)(Fats, oils, waxes)
A Triglyceride A Triglyceride molecule = A Fat molecule = A Fat MoleculeMolecule
II. TriglyceridesII. Triglycerides
II. TriglyceridesII. Triglycerides
What’s the differences between What’s the differences between saturated and unsaturated fats?saturated and unsaturated fats?
Saturated – carries as many H as Saturated – carries as many H as possiblepossible
Unsaturated – double bond replaces HUnsaturated – double bond replaces HPolyunsaturated – more than 1 double Polyunsaturated – more than 1 double
bondbond
Saturated vs. UnsaturatedSaturated vs. Unsaturated
SaturatedSaturated UnsaturatedUnsaturated
Benefits of Fats & Benefits of Fats & CholesterolCholesterol
Fats (Triglycerides)Fats (Triglycerides) CholesterolCholesterol