如图为动物细胞和植物细胞结构示意图,请根据图回答:(1)和动物细胞相比,植物细胞所特有的细胞结构①

2025-04-01 17:09:38
推荐回答(1个)
回答(1):

(1)由植物细胞和动物细胞的结构示意图可知:①细胞壁,②细胞膜,③细胞核,④液泡,⑤细胞质,⑥叶绿体,植物细胞所特有的细胞壁、叶绿体和液泡.
(2)细胞核内有遗传物质.
(3)细胞吸水和失水的原理是:细胞外部溶液的浓度小于细胞液浓度时细胞就吸水,细胞外部溶液的浓度大于细胞液浓度时细胞就失水.
(4)我们在显微镜下看到的物像是上下左右均颠倒的物像,所以我们移动玻片标本时,标本移动的方向正好与物像移动的方向相反.题中物像位于视野中央左上方,要想把它移到视野中央,应该向左上方移动玻片标本,物像才向下方移动移到视野中央.
故答案为:((1)液泡   叶绿体  (2)细胞核   (3)失水    (4)左上方

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