19 Questions
How do chylomicrons travel through the body?
They travel through the lymph to the body
What is the main function of lipoprotein lipase?
To break down triglycerides in chylomicrons
How are remnants of chylomicrons cleared from the body?
Via remnant receptors in the liver
What happens to VLDL remnants in the body?
They are broken down into LDL
How does cholesterol released from LDL affect endogenous cholesterol production?
It reduces HMG CoA reductase activity
What is the main function of ApoA1 protein in relation to HDLs?
To interact with cell macrophages for cholesterol removal
What characterizes lipoprotein (a) or Lp(a)?
It is an independent risk factor for heart disease and stroke
Which lipoprotein is produced by the liver to send triglycerides to cells for energy during fasting?
VLDL
What is the main function of LDL in the context of lipoprotein metabolism?
Main component in atherosclerosis
What is the body's main source of immediate and stored energy?
Triglycerides
Where are chylomicrons produced, and what do they mainly contain?
Produced by intestines, contain dietary fats & cholesterol
What is the specific role of HDL in lipoprotein metabolism?
Remove excess cholesterol from tissues
Which lipoprotein is considered the 'good guy' due to its function of removing excess cholesterol from tissues?
HDL
What is the main component of atherosclerosis that LDL contributes to?
Cholesterol
Which lipoprotein is primarily responsible for carrying triglycerides?
VLDL
What happens to chylomicrons as they mature?
Chylomicrons carry dietary fats and cholesterol.
What is the primary source of cholesterol synthesis in the body?
All cells except mature RBCs
Which type of lipoprotein is involved in transporting cholesterol to all cell membranes?
LDL
What is the primary function of triglycerides in the body?
Serving as an immediate energy source
Learn about the functions of cholesterol and triglycerides in lipoprotein metabolism. Understand how cholesterol is a component of cell membranes, steroid hormones, and bile salts, while triglycerides serve as the main form of dietary and endogenous fat for energy storage. Explore the synthesis and metabolism of lipoproteins.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
