63 下列有關 eicosanoids 的敘述，何者錯誤？
(A)其合成源主要為花生四烯酸（arachidonic acid）
(B)所有的 eicosanoids 均包括有一個 pentane 環
(C)由於 eicosanoids 的形成，活化了 phospholipase A 2
(D)是一種不飽和脂肪酸

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統計： A(10), B(313), C(63), D(22), E(0) #417909

詳解 (共 2 筆)

#863747
In biochemistry, eicosanoids are signaling molecules made by oxidation of 20-carbon fatty acids(arachidonic acid 花生四烯酸). 
(A)花生四烯酸cyclooxygenase氧化产生eicosanoids，(C)是一种不饱和脂肪酸，包括prostagalndins,prostacyclins, 及thromboxanes等
(B)所有的 eicosanoids 只有prostaglandins結構式有一個 pentane 環
細胞膜的phospholipids被酵素phospholipase A2(PLA2)作用,產生花生四烯酸（arachidonic acid）
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#863749
The prostaglandins are a group of lipid compounds that are derived enzymatically from fatty acids and have important functions in the animal body. Every prostaglandin contains 20 carbon atoms, including a 5-carbon ring.f2b29970.png
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