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The researcher

finished his food and looked for a dustbin to dispose of his plate. He pointed

out to an analogy “You see these dustbins. What happens if there are not

sufficient of them? The waste won’t be disposed correctly and will litter

around on the streets. In a similar way, if there are not enough receptors for

LDL on the liver cells, the LDL would litter around in the bloodstream”. So why

does this happen and what can be done?

Practice question: Which

of the following statements about LDL is correct?

The lack of

sufficient LDL receptors on liver cells would lead to less LDL being circulated

in the bloodstream.

Without enough LDL

receptors, LDL particles remain in circulation instead of being taken up by the

liver for breakdown or storage. This leads to higher LDL levels in the blood,

increasing the risk of atherosclerosis.

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