2012年11月13日星期二

微生物的种类

微生物的总类很多,其中包括细菌,真菌,病毒和原生动物

细菌(germs)细菌是所有生物中数量最多的一类,到处都有它们的踪迹。 拥有简单的结构,呈球形,螺形,杆形,孤行或长丝形。

真菌(Fungus)真菌(Fungus)是一种真核生物。最常见的真菌是各类蕈類,另外真菌也包括霉菌和酵母菌(yeast)。 须寄生在其他生物上以获取营养。

病毒 (Virus)是目前所发现最小的微生物。
可以利用动物,植物或人体的细胞系统进行自我复制,但无法独立生长和复制。病毒可以感染所有的具有细胞的生命体

原生动物(protozoan / bacteria)多数生活在水里,如海洋,河水,池塘等。它们的体积比细菌大。

2 条评论:

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