Biology
Cholesterol

What are the functions of cholesterol?

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02/20/2016

When you hear the word cholesterol, the first thing you probably think of is that it is bad. However, cholesterol is actually a very important component of cell membranes. Cholesterol molecules are made up of four rings of hydrogen and carbon atoms. They are hydrophobic and are found among the hydrophobic tails in the lipid bi-layer. Cholesterol molecules are important for maintaining the consistency of the cell membrane. They strengthen the membrane by preventing some small molecules from crossing it. Cholesterol molecules also keep the phosphoric tails from coming into contact and solidifying. This ensures that the cell membrane stays fluid and flexible
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