Cholesterol is an organic molecule. It is a sterol or a type of lipid. Cholesterol is biosynthesized by all animal cells and is an essential structural component of animal cell membranes.
Cholesterol also serves as a precursor for the biosynthesis of steroid hormones,and vitamin D. In vertebrates, hepatic cells typically produce the greatest amounts. It is absent among prokaryotes, although there are some exceptions, such as Mycoplasma, which require cholesterol for growth.
According to the lipid hypothesis, elevated levels of cholesterol in the blood lead to atherosclerosis which may increase the risk of heart attack, stroke, and peripheral vascular disease.
Reference
https://en.m.wikipedia.org/wiki/Cholesterol
Cholesterol also serves as a precursor for the biosynthesis of steroid hormones,and vitamin D. In vertebrates, hepatic cells typically produce the greatest amounts. It is absent among prokaryotes, although there are some exceptions, such as Mycoplasma, which require cholesterol for growth.
According to the lipid hypothesis, elevated levels of cholesterol in the blood lead to atherosclerosis which may increase the risk of heart attack, stroke, and peripheral vascular disease.
Reference
https://en.m.wikipedia.org/wiki/Cholesterol
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