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LDL (low-density lipoprotein) and HDL (high-density lipoprotein) are both types of lipoprotein particles that transport cholesterol in the blood.

The structure of LDL particles consists of a core of cholesterol esters surrounded by a shell of phospholipids and apolipoproteins. LDL particles are known as "bad" cholesterol because they can deposit cholesterol in the walls of arteries, leading to atherosclerosis.

On the other hand, HDL particles have a core of cholesterol and triglycerides surrounded by a shell of phospholipids and apolipoproteins. HDL particles are considered "good" cholesterol because they help remove excess cholesterol from the bloodstream and transport it to the liver for excretion.

In summary, LDL particles transport cholesterol from the liver to the tissues, while HDL particles transport excess cholesterol from the tissues back to the liver.

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What are the differences in structure between LDL and HDL particles?

LDL (low-density lipoprotein) and HDL (high-density lipoprotein) particles differ in their composition and function. LDL particles are larger and contain more cholesterol, while HDL particles are smaller and contain more protein. LDL particles transport cholesterol from the liver to cells, while HDL particles remove excess cholesterol from cells and transport it back to the liver for disposal.


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Related Questions

What are the differences in structure between LDL and HDL particles?

LDL (low-density lipoprotein) and HDL (high-density lipoprotein) particles differ in their composition and function. LDL particles are larger and contain more cholesterol, while HDL particles are smaller and contain more protein. LDL particles transport cholesterol from the liver to cells, while HDL particles remove excess cholesterol from cells and transport it back to the liver for disposal.


What are the molecules that share the same chemical composition but differ in molecular structure?

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Isomers are pairs of molecules that share the same chemical formula but have different structural arrangements. For example, glucose and fructose both have the chemical formula C6H12O6, but they have different structural arrangements.


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