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- 17 Mar 2024
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Steroids have two principal biological functions: as important components of cell membranes, which alter membrane fluidity, and as signaling molecules. Hundreds of steroids are found in plants, animals, and fungi. All steroids are produced in cells from the sterols lanosterol (animals and fungi) or cycloartenol (plants). Sterols, also known as steroid alcohols, are a subgroup of steroids and an important class of organic molecules. They occur naturally in plants, animals, and fungi, and can also be produced by some bacteria. The most well-known type of animal sterol is cholesterol, which is vital to cell membrane structure and functions as a precursor to fat-soluble vitamins and steroid hormones.
Steroids have two principal biological functions: as important components of cell membranes, which alter membrane fluidity, and as signaling molecules. Hundreds of steroids are found in plants, animals, and fungi. All steroids are produced in cells from the sterols lanosterol (animals and fungi) or cycloartenol (plants). Sterols, also known as steroid alcohols, are a subgroup of steroids and an important class of organic molecules. They occur naturally in plants, animals, and fungi, and can also be produced by some bacteria. The most well-known type of animal sterol is cholesterol, which is vital to cell membrane structure and functions as a precursor to fat-soluble vitamins and steroid hormones.