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Based on their compositional differences, different lipoproteins serve very different biological roles; what physical quality of lipoproteins most likely determines their function?
  • a)
    Density
  • b)
    Shape
  • c)
    Volume
  • d)
    pH
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Based on their compositional differences, different lipoproteins serve...
The density of lipoproteins is a key factor that determines their function. Lipoproteins are complex particles composed of lipids (such as cholesterol and triglycerides) and proteins. The relative amounts of lipids and proteins in a lipoprotein influence its density. Lipoproteins with higher lipid content have lower density, while those with higher protein content have higher density. The density of lipoproteins affects their transport and distribution in the bloodstream and their interaction with specific receptors on target cells. Different lipoproteins, such as chylomicrons, very-low-density lipoproteins (VLDL), low-density lipoproteins (LDL), and high-density lipoproteins (HDL), have distinct densities and play different roles in lipid metabolism and transport. For example, LDL is often referred to as "bad cholesterol" because it transports cholesterol to peripheral tissues and can contribute to the development of atherosclerosis, while HDL is known as "good cholesterol" because it helps remove cholesterol from tissues and transport it back to the liver for excretion.
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