Cholesterol

Question

describe how cholesterol is transported in blood and how excess cholesterol is linked to coronary heart disease

Answer 1

Cholesterol is transported through the body through either Low density lipoproteins (LDL) or High Density lipoproteins (HDL). In the former the sacs consist of thousands of cholesterol molecules surrounded by a lipoprotein shell and they are typically produced by the liver and are used to supply cells with cholesterol. Excess Cholesterol is then transported back to the liver in the form of HDL which are more compact and contain fewer cholesterol.

When the body ingest too much cholesterol the production of LDL by the liver is kicked into overdrive though they'll soon run out of targets that demand cholesterol thus leaving the sacs to float around in the bloodstream growing in concentration until they begin to settle in blood vessel and form plaques that may lead to heart problems.