Chapter 6: Lipids

Question 1

two naming systems for lipids

Answer 1

Omego (ω or n)
-start as METHYL GROUP (CH3)
-(18:2 ω6)

Delta system
-start at CARBOXYL GROUP (COOH)
-(18:2 Δ9,12)

Question 2

omega 3 and 6 names

Answer 2

omega 3
alpha-linolenic acid

omega 6
linoleic acid

Question 3

types of lipoproteins and what they carry

Answer 3

chylomicron
-dietary fat (small intestine -> body)

VLDL
-synthesized lipids (liver -> body)

LDL
-cholesterol (liver -> body)

HDL
-cholesterol (body -> liver)

Question 4

lipoproteins and their components

Answer 4

chylomicron
-dietary triglycerides

VLDL
-endogenous triglycerides

LDL
-cholesterol

HDL
-protein & phospholipids

Question 5

Food Sources of Lipids

Answer 5

-Oils/butter
-Avocados
-Nuts

Question 6

how do triglycerides bond

Answer 6

carboxyl group on end of FA bonds with glycerol backbone (loses H2O)

Question 7

digestive enzymes

Answer 7

mouth
-lingual lipase

stomach
-gastric lipase

pancreas
-lipase (most)
-phospholipase
-cholesterol esterase

Question 8

cis vs trans bonds

Answer 8

cis _/

trans \/\