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Encyclopaedia

Britannica - Volume 27

steroid, Any of a class of natural or synthetic organic compounds with a molecular core, or nucleus, of 17 carbon atoms in a characteristic three-dimensional arrangement of four rings. The configuration of the nucleus, the nature of the groups attached to it, and their positions distinguish different steroids. Hundreds have been found in plants and animals and thousands more synthesized or made by modifying natural steroids. Steroid are important in biology, chemistry, and medicine. Examples include many hormones (including the sex hormones), bile acids, sterols (including cholesterol), and oral contraceptives. Digitalis was the first steroid widely used in Western medicine. Corticosteroids and their synthetic analogs are u ed to treat rheumatism and other inflammatory ailments.

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Pusat Sumber Daya Mineral, Batubara dan Panas Bumi - Jln. Soekarno Hatta No. 444, Bandung, Jawa Barat PMB 032 BRI m.20
PMB 032 BRI m.20
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Judul Seri
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No. Panggil
PMB 032 BRI m.20
Penerbit
Malaysia. : Encyclopaedia Britannica.,
Deskripsi Fisik
16422p. : ill. ; 14 cm
Bahasa
English
ISBN/ISSN
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Klasifikasi
032 BRI m.20
Tipe Isi
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Tipe Media
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Tipe Pembawa
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Edisi
27th Vol.
Subjek
Steroid
Thackeray
Stevin, Simon
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