Classification of microbes o according to organizational structure, microbes can be divided into three types: Prokaryotes(Eubacteria and archaebacteria) Eukaryotes (fungi, Protozoa, algae) Acellular entities (viruses)
•According to organizational structure, microbes can be divided into three types: Prokaryotes (Eubacteria and Archaebacteria) Eukaryotes (fungi, Protozoa, algae) Acellular entities (viruses) Classification of microbes
Eubacteria and archaebacteria PROKARYOTES Eubacteria and archaebacteria are the two major types of prokaryotes They appear similar morphologically but have major biochemical BACTERIA ARCHAEA differences Eubacteria are true" bacteria which include bacteria Chlamydiae, Mycoplasmas, Richettiae, Spirochetes, and Actinomycetes. Some of them cause human diseases Members of the archaebacteria are often found in extreme environments(methane-containing, high salt or hot temperature) environments. They are not human pathogens and will not be discussed further
•Eubacteria are "True" bacteria which include Bacteria, Chlamydiae, Mycoplasmas, Richettiae, Spirochetes, and Actinomycetes. Some of them cause human diseases. •Members of the Archaebacteria are often found in extreme environments (methane-containing, high salt or hot temperature) environments. They are not human pathogens and will not be discussed further. Eubacteria and Archaebacteria •Eubacteria and Archaebacteria are the two major types of prokaryotes. They appear similar morphologically but have major biochemical differences
Viruses Viruses are not living organisms because they do not contain all the enzymes required for their replication and possess the biologic equipment necessary for the production of metabolic energy. Morphologically, viruses are very small particles and have no basic cell structure. a simplest virus consists of one core and one protein coat (capsid). The core composed with a nucleic acid molecule either dna or rna Viruses are non-cellular microbes. They are obligate parasites totally dependent on their host for replication
Viruses •Viruses are not living organisms because they do not contain all the enzymes required for their replication and possess the biologic equipment necessary for the production of metabolic energy. •Viruses are non-cellular microbes. They are obligate parasites totally dependent on their host for replication. •Morphologically, viruses are very small particles and have no basic cell structure. A simplest virus consists of one core and one protein coat (capsid). The core composed with a nucleic acid molecule, either DNA or RNA
Fungi Fungi is a kind of eukaryotic cells. So they have various organelles, for examples, nuclear membranes, mitochondria, endoplasmic reticulum, Golgi body, phagosomes and lysosomes There are more than 100, 000 species of fungi, but most of them are beneficial to humankind they reside in nature and are essential in breaking down and recycling organic matters Only a few of fungi can cause human diseases
•Fungi is a kind of eukaryotic cells. So they have various organelles, for examples, nuclear membranes, mitochondria, endoplasmic reticulum, Golgi body, phagosomes and lysosomes. Fungi •There are more than 100, 000 species of fungi, but most of them are beneficial to humankind. They reside in nature and are essential in breaking down and recycling organic matters. •Only a few of fungi can cause human diseases
Microbiology Microbiology is the biology of microorganisms It is a bioscience for the study of various characteristics or activities of microorganisms including microbial morphology, cytology, physiology, ecology, genetics, molecular biology and taxonomy It has an impact on medicine, agriculture, food science ecology, genetics, biochemistry, and other fields Branches of microbiology are Medical Microbiology, Food Microbiology, Public health Microbiology, Industrial Microbiology and Agricultural microbiology
•Microbiology is the biology of microorganisms. Microbiology •It has an impact on medicine, agriculture, food science, ecology, genetics, biochemistry, and other fields. •It is a bioscience for the study of various characteristics or activities of microorganisms including microbial morphology, cytology, physiology, ecology, genetics, molecular biology and taxonomy. • Branches of Microbiology are Medical Microbiology, Food Microbiology, Public health Microbiology, Industrial Microbiology and Agricultural Microbiology