miocrobiology藥學(xué)英語大二下有難度啊(已修改)
2025-01-18 14:47 本頁面
【正文】 Rogers State University 1 Microbiology Rogers State University 2 Microbiology is the study of microanisms, which are unicellular or multicellular microscopic anisms. This includes eukaryotes such as fungi and algae(藻類 ) and prokaryotes such as bacteria. Viruses, though not strictly classed as living anisms, are also studied. Microbiology is a broad term which includes many branches like virology, mycology, parasitology and others. A person who specializes in the area of microbiology is a microbiologist. Rogers State University 3 Rogers State University 4 2. Bacteria Most bacteria (singular: bacterium) are unicellular microanisms. They grow in soil, acidic hot springs, radioactive waste, seawater, and deep in the Earth39。s crust. There are approximately ten times as many bacterial cells as human cells in the human body, with large numbers of bacteria on the skin and in the digestive tract. A few are beneficial, some are pathogenic bacteria and cause infectious diseases. Rogers State University 5 Morphology Bacteria display a wide diversity of shapes and sizes, called morphologies. Most bacterial species are either spherical, called cocci (sing. coccus) or rodshaped, called bacilli (sing. bacillus). Some rodshaped bacteria, called vibrio（ 弧菌 ） , are slightly curved or mashaped。 others, can be spiralshaped, called spirilla（ 螺菌 ） . Rogers State University 6 coccus (cocci) Streptococcus pneumoniae 肺炎鏈球菌 Sarcina lutea 藤黃八疊球菌 Staphylococcus aureus 金黃色葡萄球菌 Rogers State University 7 Escherichia coli 大腸埃希桿菌 Bacillus bifidus 雙歧桿菌 Bacillus anthracis 炭疽芽孢桿菌 bacillus (bacilli) Rogers State University 8 Vibrio cholerae 霍亂弧菌 Spirilla 螺旋菌 Rogers State University 9 Cell structure Rogers State University 10 ? capsule(莢膜 ):protection against phagocytosis and desiccation， hel
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