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桃花模型 五花瓣子房蕊 放大花结构 生物实验器材教学仪器

  • EXW Price: Min. order:
    ¥16.0
    ≥18/piece
    ¥15.5
    ≥36/piece
    ¥15.0
    ≥72/piece
  • 18 piece
  • Exchage Rate 1 CNY ≈ 0.1405 USD
  • Item No. J33007
  • Stock num 500 piece
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  • Description

一.模型用途

本模型适用于中等学校生物教学时,讲授被子植物的有性繁殖器官——花的构造所使用的直观教具。模型通过局部剖面,充分显示了子房花药的内部微细结构,使学生加深了解自花粉整个过程。

二.模型结构

1.模型为放大若干倍成处然盛开的桃花,置于底座上。

2.桃花示花柄、花托、花萼、花蕊和雌蕊。

3.雌蕊一枚、示柱头、花柱和子房。其中子房作纵剖,示胚珠剖面的反足细胞、极核、卵细胞、肋细胞及珠孔。

4.雄蕊25枚示花丝,花药。其中一个花药做横剖,示药室、药隔维管束和花粉粒。

三.模型使用及保管

1.模型的子房、花瓣可拆下示教,使用后应按其原位插放稳妥。

2.模型使用后,应做防尘处理(去除灰尘、用塑料袋封装)。产品保管场地应清洁、干燥、通风,应避免阳光直射。





Update time:20230706171845


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