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Lipid Transport and Energy Production

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Questions and Answers

What is the primary mechanism by which lipids are transported in the blood?

Electrostatic attraction to red blood cells
Covalent bonding with albumin
Solubility in water
Non-covalent association with proteins in lipoprotein particles (correct)

What is the approximate percentage of fatty acids carried bound to albumin in the blood?

20%
50%
2% (correct)
10%

What is the role of apoproteins in lipoprotein particles?

To package non-water soluble lipids into a soluble form (correct)
To release lipids into the bloodstream
To transport lipids to the liver for disposal
To break down lipids into smaller components

What is the normal range of fatty acid levels in the blood?

1-5 mM (B) Signup and view all the answers

What is the significance of lipoproteins in medicine?

Disorders in their metabolism are associated with a number of important diseases (A) Signup and view all the answers

What is the origin of fatty acids that are bound to albumin in the blood?

Adipose tissue during lipolysis (B) Signup and view all the answers

What is the primary function of apoprotein molecules in lipoproteins?

To recognize cell surface receptors and activate enzymes (C) Signup and view all the answers

Which enzyme is responsible for releasing fatty acids from triacylglycerols in lipoproteins?

Lipoprotein Lipase (B) Signup and view all the answers

What is the main component of the hydrophobic core of a lipoprotein particle?

Triacylglycerol and cholesterol esters (C) Signup and view all the answers

What is the primary function of chylomicrons?

To transport dietary lipids from the intestine to tissues (C) Signup and view all the answers

What is the result of insulin increasing the synthesis of Lipoprotein Lipase?

Increased hydrolysis of triacylglycerols in lipoproteins (C) Signup and view all the answers

What is the function of Lecithin:Cholesterol Acyltransferase (LCAT) in lipoprotein metabolism?

To convert cholesterol to cholesterol ester (A) Signup and view all the answers

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