'Lipoteichoic acid' diaporamas de présentation

Part II BACTERIOLOGY

Part II BACTERIOLOGY. Yang Haibo. PROKARYOTES. Structure: have a nucleoid containing DNA surrounded by cytoplasm proteins can be synthesized energy can be generated have cell wall containing peptidoglycan ???. Method of replication:. by binary fission

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Classification, nomenclature, taxonomy,identification

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Staphylococcus-Streptococcus-Enterococcus

Staphylococcus-Streptococcus-Enterococcus. Gr + cocci ~ 21 genera. Common features Spherical shape Gram stain reaction Absence of endospores Catalase activity subdividing Catalase positive genera Staphylococcus Micrococcus Stomatococcus Alloiococcus

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Fig. 4.1

Bacterial Cell Structure. Fig. 4.1. Cytoplasm. dense gelatinous solution of sugars, amino acids, & salts 70-80% water serves as solvent for materials used in all cell functions. Chromosome.

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Immunology in an hour

Immunology in an hour. Immunity. Immunity the state of protection from infectious disease a less specific and a more specific component Innate Immunity the less specific component the first line of defense against infection mostly present before the onset of infection

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Streptococcaceae

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Bacterial Identification

Bacterial Identification. streptococci. Gram-positive cocci Facultatively anaerobic Occur in pairs and chains of varying length. Catalase negative They are usually classified based on their hemolytic properties on blood agar and according to their serologic groups.

607 views • 35 slides

Faculty: Dr. Alvin Fox

CELL ENVELOPE, SPORES AND MACROMOLECULAR BIOSYNTHESIS . Faculty: Dr. Alvin Fox. Suggested reading: Murray, Third edition Chapter 3. KEY WORDS. Cell envelope Lipopolysaccharide (endotoxin) Cell wall Teichoic acid Cell membrane Teichuronic acid

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Dr. Alvin Fox

Bacterial cell, Lecture 32. Dr. Alvin Fox. Archaebacteria . ( Archaea ). Key Words. Prokaryotic. Outer membrane . Eubacteria ( Bacteria ) . Periplasmic space. Oxidative phosphorylation . Eukaryotic. Spheroplast/protoplast . Plasmid.

495 views • 24 slides

Life and Cells

Life and Cells. What is Life? Can grow, i.e. increase in size. Can reproduce. Responsive to environment. Metabolism: can acquire and utilize energy. Schwann and Schleiden: cells basic unit of life Prokaryotes and eukaryotes from microscopy. Our focus: prokaryotic cells.

373 views • 23 slides

Life and Cells

Life and Cells. What is Life? Can grow, i.e. increase in size. Can reproduce. Responsive to environment. Metabolism: can acquire and utilize energy. Schwann and Schleiden: cells basic unit of life Prokaryotes and eukaryotes from microscopy. Our focus: prokaryotic cells.

389 views • 22 slides