Title: Midterm is 2 March in class
1Midterm is 2 March in class Lectures 1a-6b
inclusive-50 multiple choice-50 points One short
answer question-10 points Lecture 5a- 1 February
2016 Most of this lecture taken from Chapters
5,7 of Rolfes et al(Understanding Normal and
Clinical Nutrition(Nutrition 2104/2106 text)
2Outline of lecture 5 Lipids classified
-fatty acids -saturation
-triglycerides -phospholipids -sterols
3Outline of lecture 5 Lipids -digestion
-absorption -transport
4Outline of lecture 5 Lipids in the body
-roles of triglycerides -essential fatty
acids
5Outline of lecture 5 Preview of lipid
metabolism
6Outline of lecture 5 Lipid Metabolism -fatty
acid catabolism -fatty acid anabolism
-triglyceride catabolism -triglyceride
anabolism -cholesterol catabolism
-cholesterol anabolism -phospholipid
catabolism -phospholipid anabolism
-regulation
7 More detailed comments
8Lipids defined a diverse group of compounds
found in all living cells, insoluble in water but
soluble in organic solvents such as ether,
acetone and chloroform, and which include fats,
oils, triacylglycerols, fatty acids, glycolipids,
phospholipids and steroids, some lipids being
essential components of biological membranes,
others acting as energy stores and fuel molecules
for cells.
9Lipids classified -fatty acids
-straight hydrocarbon chain terminating with a
carboxylic acid group
10Lipids classified -fatty acids
-saturation -saturated-no double
bonds between carbons in a fatty acid
chain
11Lipids classified -fatty acids -diagram and
partial list of saturated fatty
acids -myristic
acid 140
-palmitic acid 160
-stearic acid 180
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13Lipids classified -fatty acids monounsaturated-
one double bond between carbons in a fatty acid
chain -diagram and partial list of
mono-unsaturated fatty acids
-palmitoleic acid 161n-7
-oleic acid 181n-9
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15Lipids classified -fatty acids -polyunsaturated
- more than one double bond between carbons in a
fatty acid chain
16-diagram and partial list of polyunsaturated
fatty acids
17 18 -diagram of omega 3 vs omega 6 fatty acids
19 20 Lipids classified Polyunsaturated a partial
list Omega 6 -linoleic acid 182 -gamma-linolenic
acid 183 -dihomogammalinolenic acid
203 -arachidonic acid 204 Omega
3 -alpha-linolenic acid 183 -eicosapentaeno
ic acid 205 -docosahexaenoic acid 226
21 22 Lipids classified -cis and trans
configurations
-diagram
23 24 Lipids classified -triglycerides
-three fatty acids attached to a glycerol
backbone -diagram
25 Lipids classified