2. _________ Name____________ 1

3. Lipids Made of __________ Very ________ Oxygen! __________ _______ dissolve in water 2

4. Lipids  Examples  _____________  Fats & oils  Major source of lipids in our diet  _________  ____________  Cell membranes  ___________  cholesterol  hormones  Testosterone & estrogen 3

5. Lipids  Functions:  _______________________  Long term – very concentrated  twice the energy as carbohydrates!  _______________________  forms a boundary around the cell  ________________________________  coating on leaves, skin  ________________________  think whale blubber! 4

6. Triglyceride = ________________________ not a true monomer or polymer = just a “______________” OILOIL general F A T 5

7. ________________: Saturated or Unsaturated 6

8. ________  Triglyceride with __________ fatty acids  Usually from ________sources  _________ dietary choice  ________ at room temperature  Examples: ____________________ 7

9. ___________  Triglyceride with _________ fatty acids  Usually from __________sources  ________________for your heart  Can clog your arteries  _______at room temperature  Examples:_________________________ 8

10. Saturated vs. unsaturated _____________________ 9

11. _______________ Lipids with a unique 4-ring structure NOT: “Anabolic Steroids”! (Drugs used to mimic testosterone) Other lipids in biology 10

12.  good molecule in animal _________________  can make _____________from it Cholesterol is not necessary in our diet because our liver can make it. Too much cholesterol in blood may lead to ______________ ________________ 11

13. Other lipids in biology  __________________ Important part of all cell membranes  A phospholipid is made of a phosphate “head”, a glycerol, and 2 fatty acid “tails”  __________are on the outside touching water  They “like” water  ______are on inside away from water  They are “scared” of water  forms a barrier between the inside/outside of a cell. HEADHEAD TAILSTAILS 12

14. ________________ = boundary to control what enters/leaves cell 13