Steroid
Any organic compound having sterane as a core structure
Nº Q177911 ★★★★
Super Rare · Knowledge
Steroid
Any organic compound having sterane as a core structure
A steroid is an organic compound with four fused rings (designated A, B, C, and D) arranged in a specific molecular configuration. Steroids have two principal biological functions: as important components of cell membranes that alter membrane fluidity; and as signaling molecules.
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From Wikipedia
A steroid is an organic compound with four fused rings (designated A, B, C, and D) arranged in a specific molecular configuration. Steroids have two principal biological functions: as important components of cell membranes that alter membrane fluidity; and as signaling molecules. Examples include the lipid cholesterol, sex hormones estradiol and testosterone, anabolic steroids, and the anti-inflammatory corticosteroid drug dexamethasone. Hundreds of steroids are found in fungi, plants, and animals. All steroids are manufactured in cells from sterol precursors: cholesterol and lanosterol (in opisthokonts), or cycloartenol (in plants). All three of these molecules are produced via cyclization of the triterpene squalene.
Text: Wikipédia, CC BY-SA 4.0. · Image: NEUROtiker (talk) (Public domain) ·
