試題詳解

73. Which of the following statements is TRUE?
① Thromboxanes and leukotrienes are eicosanoids.
② Prostaglandins are not eicosanoids.
③ Aspirin inhibits the biosynthesis of leukotrienes.
④ Prostaglandin endoperoxide H synthase shows cyclooxygenase activity.
⑤ Leukotrienes are derived from Thromboxanes via lipoxygenase-mediated reactions.
(A) ①②
(B) ①③
(C) ①④
(D) ②③⑤
(E) ③④⑤