Overview Flashcards
Triglycerides aka
triacylglycerols
What is the major lipid component of our diet?
Triglycerides/triacylglycerols
What are other dietary lipids?
Cholesterol, phospholipids and free fatty acids
Triglyceride metabolism begins where?
In small intestine
What does lipase do?
Hydrolyzes the ester bond between glycerol and fatty acids
Lipase is produced where?
pancreas
Lipase works best in what?
water
Products produced by lipase are?
monoacylglycerol
2 fatty acids
Each fatty acid is made up of what?
A carbon chain with a caboxy (-COOH) group at one end
What are the 5 main types of lipoproteins?
HDL LDL VLDL IDL chylomicrons
Which lipoprotein is “happy” with cis form, double bonds, cholesterol?
HDL
What is IDL? What is it similar to?
Intermediate density Lipoprotein
Similar to LDL
Which one is “lethal” cholesterol? In Trans from?
LDL
cis form?
HDL
Trans form?
LDL
Which lipoprotein transports triglycerides from liver to tissues?
VLDL
Which large lipoprotein transports dietary lipids from the intestine to other locations in the body?
chylomicrons
Where and how are fats stored?
As triacylglycerols (triglycerides) Adipose tissue and in liver
What are the four main types of fatty acids?
Saturated, unsaturated, essential, and non-essential
This fatty acid has NO DOUBLE BOND between carbon atoms.
saturated
Why are saturated called “saturated”?
Have no double bonds are so fully “saturated” with hydrogen atoms
What are examples of saturated fatty acids? How many carbons?
Palmitic - 16 carbons
Stearic - 18 carbons
Arachidic - 20 carbons
Oleic acid is a _____ unsaturated fatty acid. How may carbons? Where is double bond?
Mono
18:1(9)
Linoleic acid is a ______ unsaturated FA. How many carbons. Where?
18:2(9,12)
A-Linoleic acid?
18:3(9,12,15)
arachadonic acid?
20:4(5,8,11,14)
These fatty acids are not made by the body.
essential
Name essential fatty acids
Linoleic
linolenic
Linoleic is an omega ___. How many carbons?
6
18
Linolenic is an omega ___. How many carbons?
3
18
Fatty acids that can be manufactured in the body are called?
non-essential
Which fatty acid becomes essential when Linoleic acid is absent from the diet?
arachadonic acid
Arachadonic acid is made from which essential fatty acid?
linoleic
Fatty acids are used to make cholesterol from which what things are made? 5
Bile acids Cell membranes Steroid hormones Prostaglandins Vitamin D