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What is Cholesterol in Biology? PDF | Download eBooks

Learn Cholesterol definition in biology with explanation to study “What is Cholesterol”. Study cholesterol explanation with biology terms to review biology course for online degree programs.

Cholesterol Definition

  • Cholesterol is a type of steroid that is a crucial molecule in animals including being a common component of animal cell membranes.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Cholesterol Explanation

Cholesterol is an organic molecule which is found abundantly in many living organisms. 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, bile acid and vitamin D. Cholesterol is the principal sterol synthesized by all animals. In vertebrates, hepatic cells typically produce the greatest amounts. It is absent among prokaryotes such as bacteria and archaea.

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