Lipid Dehydration Synthesis Worksheet & Studysheet      old but gold(en)

     (Make a structural formula flashcard for each word in bold type)

1.     The three categories of lipids are:   F _ _ S,  _ _ _ S, &  W _ _ _ S

2.     The three elements each contains are:   _ _ _ _ _ N,  _ _ _ _ _ _ _ N, &  _ _ _ _ _ N

3.     In the lipid displayed (overhead), the ratio of hydrogen to oxygen atoms is ____ : ___

4.     We will study the structural formula of one type of fat.  The building block molecules for this type of fat are three  _ _ _ _ Y   A _ _ _ S  &  one G _ _ _ _ _ _ N _ .  (Honors only -- This type of fat is known as a triglyceride.  Why is it called by this name? ______________________)

5.     Draw the structural formula for glycerol (also known as glycerin)

6.     Make a molecular model of glycerol using the kits provided.

7.     Draw a structural formula for an organic acid (carboxyl) group (if not already done)

8.     Make a molecular model of a carboxyl group.

9.     Draw the structural formula for a small saturated (contains maximum number of hydrogen atoms & _ _  double bonds.) side group of a fatty acid.

10. Make a molecular model of the saturated side group of this fatty acid.

11. Draw the structural formula for a saturated fatty acid. (This links drawings 7 + 9)

12. Make a molecular model of the whole saturated fatty acid.

13. The teacher may show you a whole unsaturated fatty acid.  (Refer to Alternate Text Xerox)

14. What other type of molecule must be present in order for the three fatty acids to join with the

 glycerol in this synthesis?   _________

15.  How many of this type of molecule is/are needed?  ____________________________

       (This is a trap question; the teacher will explain how your prior answer may vary.)

16.  Draw the structural formula for a whole lipid (fat) molecule. 

17. Make a molecular model of this type of lipid.

18. What other molecule is produced?  _____ In what quantit (y/ies)? __________________

19. What type of chemical reaction is this?  _____________  _________________

20. Word Equation: ______ + __ _____ ____S + _ _ Z _ _ _ S                 _________ + __ _____