试题与答案

如图是甲状腺细胞摄取原料合成甲状腺球蛋白的基本过程,试回答: (1)若含18O

题型:读图填空题

题目:

如图是甲状腺细胞摄取原料合成甲状腺球蛋白的基本过程,试回答:

(1)若含18O的氨基酸在甲状腺细胞内的代谢过程中产生了H218O,那么水中的18O最可能来自于氨基酸的___(基团)。

(2)细胞内的碘浓度远远高于血浆中碘浓度,这表明a过程是一种_______方式。

(3)与c过程有关的细胞器是____________。

(4)细胞内各种生物膜在结构上存在着直接或间接的联系。与下图中③不直接相通,但膜成分最为相似的是[    ]______。

(5)将含3H标记的氨基酸注射到如图细胞中,则出现3H的部位依次为_____________。

答案:

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