'Gram negative cell wall' diaporamas de présentation

Introduction, Bacterial Classification & Immunology Review

Introduction, Bacterial Classification & Immunology Review. Different from parasites and fungi (eukaryotic). Prokaryotic organisms Simple (different) unicellular organisms no nuclear membrane no mitochondria no Golgi bodies no endoplastic reticulum Complex cell wall Gram-positive

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Chapter 1

Chapter 1. Morphology of bacteria. Learning objectives: Understand the structural features that are important medically and for identification. KEY WORDS. Cell envelope Lipopolysaccharide ??? (endotoxin ??? ) Cell wall Teichoic acid ???

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Chapter 19 Antimicrobial Agents

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Gram Negative

Gram Negative. Bacterial Diseases. Proteobacteria. Alpha: Parasitic bacteria Tick borne diseases Flea vector Beta: GNC Gamma Largest group Enterics Delta Sulfur reducing bacteria in soil/water Predatory (attack other bacteria) Epsilon : GI. Gram Negative Cell Wall. Neisseria.

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Multi-drug resistant pathogens

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Prof Hanan Habib & Dr. Albdulaziz Al- Khattaf

Bacterial Structure & Genetics. (Foundation Block, Microbiology). Prof Hanan Habib & Dr. Albdulaziz Al- Khattaf Department of Pathology & Laboratory Medicine , Microbiology Unit, KSU. Objectives.

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CELLS: UNITS OF LIFE

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Taxonomy

Taxonomy. http://www.linnean.org/html/history/linnaeus_biography.htm. http://www.nhm.ac.uk/library/linn/. www.amazon.com. Taxonomy. Plantae. Animalia. Fungi. Protista. Monera. Five kingdom system. Encephalitozoan. EUBACTERIA. EUKARYA. Hexamita. Valrimorpha. Cytophaga. Giardia.

786 views • 56 slides

Bacterial Morphology and Structure

Bacterial Morphology and Structure. SIZE OF BACTERIA. Unit for measurement : Micron or micrometer,?m: 1?m=10-3mm Size : Varies with kinds of bacteria, and also related to their age and external environment. Shape of Bacteria. Cocci : sphere, 1?m

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Prokaryotic Cells

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Bacterial Cell Structure

Bacterial Cell Structure. Dr. Zaheer Ahmed Chaudhary Associate Professor Microbiology Department of Pathology. Classification. Based on shape, arrangement and size. Shape : Cocci (round) Bacilli (rod) Spirochets (spiral shape) Pleomorphic (variable shape)

1.31k views • 50 slides

Bacterial Structure & Genetics

Bacterial Structure & Genetics. Dr. Al-Khattaf. Definition. Bacteria : Is a heterogeneous group of uni -cellular organisms about 1-8 ? m in diameter Prokaryotic ( has a primitive nucleus ): - one chromosome - no nuclear membrane - no mitochondria

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Structure of Prokaryotic & Eukaryotic Cells

Structure of Prokaryotic & Eukaryotic Cells. Review of Prokaryotic & Eukaryotic Cells. Nucleus vs nucleoid DNA : circular vs linear, presence of histones Membranous organelles Cell wall-peptidoglycan Cell division: binary vs mitosis Ribosomes: 70S vs 80S Cytoskeleton. Shape. Cocci

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BASIC MICROBIOLOGY

BASIC MICROBIOLOGY. SAMUEL AGUAZIM ( MD). Bacteria: Prokaryotes. Bacteria are prokaryotic cells. in contrast to eukaryotic cells, they have no nucleus the genetic material is restricted to an area of the cytoplasm called the nucleoid (area of the cytoplasm in which DNA is located.

891 views • 44 slides

CHARACTERISTICS OF PROKARYOTIC AND EUKARYOTIC CELLS

CHARACTERISTICS OF PROKARYOTIC AND EUKARYOTIC CELLS. CHAPTER 4. Prokaryotes binary fission no nucleus/nucleoid no organelles no introns genes arranged as operons cell wall of peptidoglycan. Eukaryotes mitosis/meiosis nucleus histones organelles introns

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III. Infection and Disease

III. Infection and Disease. A. Definitions B. The Normal Flora of Humans C. Generalized Stages of Infection D. Virulence Factors and Toxins. III. A. Definitions. Disease and Infectious Disease Disease Any deviation from a condition of good health and well-being Infectious Disease

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Classification of Bacteria

Classification of Bacteria. Differentiation of Bacteria by Cell Wall Composition. Bacteria Cell Walls. The cell wall is the outer most layer of the cell. In many cases the cell wall comes in direct contact with the environment. Function Protection of the cell

1.23k views • 25 slides

Microbiology

Microbiology. Review of Gram Stain Selective and differential Media. Gram Positive Bacteria. Staphylococcus aureus Streptococcus salivarius Bacillus subtilis Staphylococcus epidermidis. Gram Positive Cell Wall. Gram Negative Bacteria. E. coli Pseudomonas aeruginosa Proteus vulgaris

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