1. What is a microbe? 4y7 81.1 Microbe: Microbe is used to describe an organism that is so small that normally, it cannot be seen without the aid of a microscope 12 the category: Viruses(病毒), Bacteria(细菌), Archaea(古细 菌), fungi(真菌) and protista(原生生物) 8 1.3 Their sizes and cell type Microbe Approximate range of sizes Nature of cell Viruses 0.01-0.25 um Acellular(非细胞的) Bacteria0.1~750∠m Prokaryote(原核细胞) Fungi 2∠m~1 Eukaryote(真核细胞) Protista 2~1000∠m EukaryoteMicrobe Approximate range of sizes Nature of cell Viruses 0.01~0.25㎛ Acellular（非细胞的） Bacteria 0.1~750 ㎛ Prokaryote（原核细胞） Fungi 2 ㎛~1m Eukaryote（真核细胞） Protista 2~1000 ㎛ Eukaryote 1.What is a microbe？ 1.1 Microbe : Microbe is used to describe an organism that is so small that , normally , it cannot be seen without the aid of a microscope. 1.2 the category :Viruses（病毒）, Bacteria（细菌）, Archaea（古细 菌） ，fungi（真菌）and protista（原生生物） 1.3 Their sizes and cell type