Biochemstry Lipids (18%) Flashcards
What is the bond called between a glycerol and fatty acids called
Ester bond
What are the charactertistcs iof a Saturated Fatty Acid
no Carbon-carbon double bonds
Filled with Hydrogen
Heavy, dense and solid at room temp
What are some examples of Saturated Fatty Acid
Lard, butter, Cocconut Oil, and Palm Oil
What are the characteristics of Monosaturated Fatty Acid
One carbon-carbon double bond
Liquid at room temperature
Examples of Monosaturated fatty acids
Olive Oil, Olices, Peanut Oil
What are the characterisics of Polysaturated Fatty Acids
More than one carbon-carbon bond
liquid at room temperature
Examples of polysaturated fatty acids
sunflower oil, corn oil, sobean oil,alpha linolenic (essential AA)
What are the essential fatty acids
Arachidonic 20:4 Linolenic 18:3 Linoleic 18:2 EPA 20:5 (ALLE)
Cholesterol is used to mkae
Steroid hormones
Bile salts
Cell membranes
What is required to make cholesterol
ATP
Mg
NADPH
What are the precursoe molecules for Cholesterol
Melvalonate
Acetyl CoA
Squalene
HMG CoA
What are the lipoproteins
Chylomicron
VLDL
LDL
HDL
Which lipoprotein is not made in the liver
Chylomicron (intestinal mucosa)
What is the function of chylomicron
transports dietary lipids to body
What is the function of VLDL
Transports endogenous lipids from liver liver to body
What is the function of LDLs
Transort cholesterol from liver to body
What are the functions of HDL
Removes excess “free” cholesterol form the blood
Where is beta oxidation occuring
Mitochindria
What is the function of beta oxidation
Cuts fatty acid chain, 2 carbons at a time tom make Acetyl CoA for Krebs cycle
What system is Carnitine assocaited with
Beta Osidation
What does Carnitine do
“drives” tansports fatty acid chain into mitochindria
What doe beta oxidtaion produce
One Acteyl CoA
Reuces FAD to FADH
Reduces NAD to NADH
The final piece of beta oxidation will be
Propionyl CoA (3 carbons long)
What is the function of Ketogenesis
froms Ketone bodies as a by-product of Beta Oxidation
Where is Lipogenesis occuring
Cytoplasm
What does Lipogenesis produce
Fatty acids, from Acteyl CoA
What is the intermediate of Lipogenesis
Malonyl CoA
What stimulates Lipogenesis
ATP and insulin
What inhibits Lipgenesis
Epi, and glucagon
Digestion for lipids occur in
Mouth
Small Intestine
