peach blossom model five petals ovary enlargement flower structure biological experiment equipment teaching instrument

peach blossom model five petals ovary enlargement flower structure biological experiment equipment teaching instrument 中文版

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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