Lipids Flashcards
Predominant bond in lipids.
Carbon-Hydrogen (C-H) Bonds
Chains of C-H bonds that terminates with -COOH.
Fatty Acids (FA)
Fatty acid that bound to albumin?
Unesterified Fatty Acids
Fatty acid that is a constituent of Triglycerides?
Esterified Fatty Acids
Fatty acid that has no double bonds.
Saturated Fatty Acids
Fatty acids that has only one double bond.
Monosaturated Fatty Acids
Fatty acids with greater than two double bonds.
Polysaturated Fatty Acids
A lipid which has no charged groups, water insoluble, and is a neutral lipid.
Triglycerides (TAG)
Triglyceride is completely (hydrophobic / hydrophilic)?
Hydrophobic
A lipid which contain 3 fatty acids (FA) attached to 1 glycerol.
Triglycerides
A lipid which contain 2 fatty acids (FA) attached to 1 glycerol.
Phospholipids
A characteristic which exhibit a hydrophobic tail and a hydrophilic tail.
Amphipathic
True or False: The 2nd position of a phospholipid contains the phospholipid head group.
False, the 3rd position of a phospholipid contains the phospholipid head group.
A lipid which is an unsaturated steroid alcohol which also contain four rings.
Cholesterol
Kind of cholesterol that is a free cholesterol.
Unesterified Cholesterol
Kind of cholesterol that is a cholesteryl ester.
Esterified Cholesterol
2 kinds of cholesterol.
A. Unesterified Cholesterol
B. Esterified Cholesterol
Which kind of cholesterol is amphipathic?
Unesterified Cholesterol
Which kind of cholesterol is a neutral lipid?
Esterified Cholesterol
Cholesterol can be converted to? (3)
A. Bile Salts
B. Steroid Hormones
C. Vitamin D and Cell Membrane
Components of a lipoprotein.
A. Lipids
B. Proteins
What can you find on the surface of a lipoprotein? (2)
A. Free Cholesterol
B. Phospholipids
What can you find in the core of a lipoprotein?
A. Triglycerides
B. Cholesteryl esters
Functions of Apolipoprotein. (3)
A. Maintain structural integrity.
B. Ligands for cell receptor.
C. Activators and inhibitors of enzymes.
Activators and inhibitors of enzymes.
Apolipoprotein
Largest lipoprotein.
Chylomicron
Least dense lipoprotein.
Chylomicron
Chylomicrons are produced the?
Intestine
Responsible for delivery of dietary lipids to liver and peripheral tissue.
Chylomicrons
Also known as the Pre-B-Lipoprotein.
Very Low Density Lipoprotein (VLDL)
VLDL are produced in?
Liver
Responsible for transfer of triglycerides from liver to peripheral tissue.
Very Low Density Lipoprotein (VLDL)
Also known as the B-Lipoprotein.
Low Density Lipoprotein (LDL)
Also known as the bad cholesterol.
Low Density Lipoprotein (LDL)
Low Density Lipoprotein (LDL) came from?
Lypolysis of Very Low Density Lipoprotein (VLDL)
Responsible for the transfer of dietary chlesterol to peripheral tissue.
Low Density Lipoprotein (LDL)
Lipoprotein that can infiltrate into the extracellular spaces of the vessel wall.
Low Density Lipoprotein (LDL)
A precursor of atherosclerotic plaques.
Foam Cells
Once LDL is oxidized and taken up by macrophages, it may turn into?
Foam Cells
Also known as the A-Lipoprotein.
High Density Lipoprotein (HDL)
Also known as the good cholesterol.
High Density Lipoprotein (HDL)
High Density Lipoprotein (HDL) is produced in ? (2)
A. Liver
B. Intestine
Lipoprotein responsible for the transfer if cholesterol from peripheral cells back to the liver.
High Density Lipoprotein (HDL)
The heaviest and the fastest lipoprotein.
High Density Lipoprotein
A LDL-like particle that contains Apo-a.
Lipoprotein a
Confers risk for premature coronary heart disease and stroke.
Lipoprotein a
True or False: Lipoprotein a may compete with plasminogen and it also inhibit clot lysis.
True.
Reference range of Total Cholesterol; HDL; LDL and Triglycerides in adults.
Total Cholesterol: 140-200 mg/dL
HDL: 40-75 mg/dL
LDL: 50-130 mg/dL
Triglyceride: 60-150 mg/dL
Conversion factor for Total Cholesterol; HDL; LDL?
0.026 mmol/L
Conversion factor for triglycerides?
0.011 mmol/L
Pathways for Lipids. (4)
A. Lipid Absorption
B. Exogenous Pathway
C. Endogenous Pathway
D. Reverse Cholesterol Transport Pathway
Enzyme which makes Dietary lipids to become amphipathic?
Lipase
Emulsifying agent dietary lipids to form micelles?
Bile Salt
Micelles absorbed in the intestine are packed to form?
Chylomicrons
Pathway in where lipoprotein lipase (LPL) hydrolyzes triglyceride in the chylomicrons into fatty acid (FA) and glycerol.
Exogenous Pathway
Pathway in where chylomicrons are breakdown into chylomicron remnants.
Exogenous Pathway
Pathway in where triglycerides in the liver are packaged into Very Low Density Lipoprotein (VLDL).
Endogenous Pathway
Pathway in where lipoprotein lipase (LPL) hydrolyzes triglyceride in the VLDL into fatty acid (FA) and glycerol.
Endogenous Pathway
Pathway in where VLDL breaks down into VLDL remnants and LDL.
Endogenous Pathway
Pathway in where HDL removes and deliver excess cholesterol to the liver.
Reverse Cholesterol Transport Pathway
Pathway in where aqueous diffusion pathway and ABCA1 Transport.
Reverse Cholesterol Transport Pathway
Lipid Disorders (4)
A. Arteriosclerosis
B. Hyperlipoproteinemia
C. Lipoprotein a Elevation
D. Hypoalphalipoproteinemia
Lipid disorder there is an deposition of esterified cholesterol in artery walls.
Arteriosclerosis
Lipid disorder that is associated in the heart.
Coronary Artery Disease (CAD)
Lipid disorder that is associated in the extremities/legs or arms.
Peripheral Vascular Disease (PVD)
Lipid disorder that is associated in the brain.
Cerebrovascular Disease (CVD)
Types of hyperlipoproteinemia. (3)
A. Hypercholesterolenemia
B. Hypertriglyceridemia
C. Combined Hyperlipoproteinemia
Hyperlipoproteinemia which has increased LDL and decreased LDL receptors.
Hypercholesterolenemia
Hyperlipoproteinemia that has decreased LDL/Apo C-II (cofactor).
Hypertriglyceridemia
Hyperlipoproteinemia in which VLDL or Chylos are broke down into remnants.
Hypertriglyceridemia
Hyperlipoproteinemia that has increased triglycerides and cholesterol.
Combined Hyperlipoproteinemia
Hyperlipoproteinemia associated with Familial Combined Hyperlipoproteinemia (FCH)
Combined Hyperlipoproteinemia
Hyperlipoproteinemia which is associated with Familial dysbetalipoproteinemia (Type III)
Combined Hyperlipoproteinemia
Familial dysbetalipoproteinemia (Type III) contain what apolipoprotein.
Apo E2/2
Familial dysbetalipoproteinemia (Type III) has what characteristics? (2)
A. Increased Cholesterol rich VLDL
B. Chylomicron Remnants
Lipid disorder that is associated with hypoalphalipoproteinemia.
Tangier’s Disease
Two methods for cholesterol analysis.
A. Abell Kendall
B. Cholesteryl Oxidase
The non-enzymatic method for cholesterol analysis.
Abell Kendall Method
Reaction for Abell Kendall Method?
Liebermann-Burchard Reaction
Color of the solution in Abell Kendall Method?
Green Solution
Enzymatic method for cholesterol analysis.
Cholesteryl Oxidase Method
Enzyme that triggers the pink solution in Cholessteryl Oxidase Method.
Peroxidase
Color of the solution in Cholesteryl Oxidase Method.
Pink Solution
Methods for triglyceride analysis. (3)
A. Van Hand and Zilversmith
B. Hantzch Condensation
C. Glycerol Kinase
The non-enzymatic methods for triglyceride analysis. (2)
A. Van Hand and Zilversmith
B. Hantzch Condensation
The fluorimetric method for triglyceride analysis.
Hantzch Condensation Method
The enzymatic method for triglyceride analysis.
Glycerol Kinase Method
Color of the solution for Van Hand Method.
Blue Solution
Color of the solution for Hantzch Condensation Method.
Yellow Solution
General methods for lipoproteins.
A. Ultracentrifugation
B. Electrophoresis (with 4 bands)
A method for lipoprotein which is based on molecular density.
Ultracentrifugation
Order of the lipoproteins from lightest to heaviest.
Chylomicron
VLDL
LDL
HDL