Biology
Study of Micro-organisms
1-Microbiology as a science was born in 1674 when Antyonh Van Leewenhoek peered at a drop of lake water through a glass lens that he had carefully ground.
2-Antyonh Van Leewenhoek built a single lens powerful microscope, which could magnify the object 300 times.
3-Diseases like Polio,Swine Flu, Conjunctivis, Small Pox, Chicken -pox and AIDS are caused by viruses.
4-Some micro-organisms are present inside the bodies of animals and plants.
5-Diseases like Malaria,Amoebiasis are caused by Protozoa.
6-Small organisms which are not visible to human eye are called micro-organisms.We can see them only with the help of a very powerful microscope called Electron Microscope.
7-The study of micro-organisms is called Micro-Biology.
8-Micro-organisma are of five types.They are Bacteria, Protozoa, Algae, Fungi and Virus
9-Some of the micro-organisms are autotrophs while some are heterotrophs.
10-Viruses are special type of micro-organisms , which lie between living and non living organisms.They can reproduce only in host living cells.
11-Microbes are present everywhere in our surroundings.
12-All micro-organisms are usually single celled organisms.
13-Cell of the micro-organisms contain a small amount of protoplasm and genetic material.
14-Based on the presence and absense of nucleus, micro-organisms are classified into two types-
a) Eukaryotes (with nucleus) b) Prokaryotes (without nucleus)
15-Bacteria move with the help of flageela.
16-Fungus grow on paper, wood and it damages the clothes.
17-Some fungi decompose the dead plants and animals.
18-Algae are unicellular,colonial, filamentous and autotrophic.
19-The study of viruses is called Virology
20-The study of fungi is called Mycology.
21-The study of Algae is called Phycology.
22-The study of Bacteria is called Bacteriology