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A图为某植物细胞的亚显微结构模式图,B图示某动物细胞分泌蛋白合成和分泌的途径,请据图回答问题: (1)A图细胞与蓝藻细胞最主要的区别是________________。 (2)A图细胞中与能量转换有关的细胞器是____________(填标号)。某种毒素能抑制细胞有氧呼吸,该毒素损伤了______________。 (3)若将A图细胞置于0.3g/mL的蔗糖溶液中将会出现细胞壁与____________发生分离;若将A图细胞置于一定浓度的KNO 3 溶液中会出现质壁分离自动复原的现象,原因是__________________。 (4)假如A图为动物细胞,不应有的结构是_______(填标号),应添加的结构是________。 (5)若用含 18 O标记的氨基酸培养液培养B图细胞,发现在合成分泌蛋白的过程中产生了H 2 18 O,则H 2 18 O的生成部位是_________,该细胞中出现 18 O的部位依次为__________(填图中标号)。控制分泌蛋白合成的信使RNA,从其合成场所到达分泌蛋白合成场所的过程中,必须直接穿越的生物膜层数是________层。 (6)B细胞在分泌物分泌前后几种生物膜面积将会发生改变,由此可以说明,生物膜的结构特点是____________________。
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when you came here
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