Chapter 8- Lipids (Oct 29 lecture)

Question 1

fatty acid chains with an odd number of C:

Answer 1

• most are products of microorganisms

- presence in ruminant tissues

Question 2

simple lipids=

Answer 2

esters of fatty acids with various alcohols

• fats and oils= glycerol + fatty acids
• waxes= other alcohols + fatty acids

Question 3

compound lipids=

Answer 3

esters of fatty acids containing non-lipid substances

- CHO, phosphorus, or proteins

Question 4

____ are the major forms of fatty acids in the body

- plant, animal storage of ___

Answer 4

glycerides

energy

Question 5

simple triglycerides=

Answer 5

• same fatty acid structure at all 3 positions
• chain length (also depends on saturation)
  
  • <10C chain: liquid at room temp
  • > 10C chain: solid at room temp
• chain saturation (also depends on chain length):
  
  • state depends on degree of saturation

Question 6

mixed triglycerides=

Answer 6

not all fatty acid structures are the same

- state at room temp depends on mixture of fatty acids

Question 7

fatty acids have a __ head and ___ __ tails

Answer 7

glycerol

fatty acid