Which observation during lipoprotein ultracentrifugation indicates chylomicrons?

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Multiple Choice

Which observation during lipoprotein ultracentrifugation indicates chylomicrons?

Explanation:
Chylomicrons are the largest, least dense lipoproteins because they’re richest in triglycerides. In ultracentrifugation, particles separate by density, so these buoyant lipoproteins rise to the very top of the tube. They form a distinct creamy, milky layer at the top, which is characteristic of chylomicrons. The other lipoproteins stay below this top layer and appear as turbid or clearer bands, not the creamy top. So seeing a creamy top layer indicates chylomicrons.

Chylomicrons are the largest, least dense lipoproteins because they’re richest in triglycerides. In ultracentrifugation, particles separate by density, so these buoyant lipoproteins rise to the very top of the tube. They form a distinct creamy, milky layer at the top, which is characteristic of chylomicrons. The other lipoproteins stay below this top layer and appear as turbid or clearer bands, not the creamy top. So seeing a creamy top layer indicates chylomicrons.

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