8 03, 2021

Cytoplasmic (Cell) Membrane, Mesosome and Cytoplasm

Bacterial Classification and Structure|0 Comments

1. Cytoplasmic (Cell) Membrane Located just inside the peptidoglycan layer. Phospholipid bilayer similar to eukaryotic membranes, but does not contain sterols (except Mycoplasma species). Functions: [...]

8 03, 2021

The Structure of Bacterial Cells

Bacterial Classification and Structure|0 Comments

Structure Chemical Composition Function Essential Components Cell Wall   Peptidoglycan         Outer membrane of Gram- negative bacteria     Surface fibers of [...]

8 03, 2021

Medically important bacteria that cannot be seen in the Gram stain

Bacterial Classification and Structure|0 Comments

Name Reason Alternative Microscopic Approach Mycobacteria (Ex. M. tuberculosis) Too much lipid in cell wall so dye cannot penetrate Acid-fast stain Treponema pallidum Too thin [...]

8 03, 2021

Classification of Bacteria

Bacterial Classification and Structure|0 Comments

It is difficult to classify all bacteria into clear-cut categories.  Various classification methods are used, depending in part, on the purpose.   Nomenclature Bacteria are [...]

8 03, 2021

Eukaryotes vs. Prokaryotes

Bacterial Classification and Structure|0 Comments

  Property Prokaryotic Bacterial Cells Eukaryotic Human Cells DNA within a nuclear membrane No Yes Number of chromosomes 1 More than 1 Mechanism of Replication [...]

5 03, 2021

Bacterial Classification and Structure

Bacterial Classification and Structure|0 Comments

Learning Objectives: You should be able to: describe the major differences between eukaryotic and prokaryotic cells and explain why it is important to know the [...]

5 03, 2021

Infective Syndromes

Introduction to Infectious Disease|0 Comments

The study and diagnosis of infectious diseases is approached from an organ system perspective. Upper and Lower Respiratory Tracts Gastrointestinal Tract Urinary Tract Genital Tract [...]

5 03, 2021

Immunity and Immunization

Introduction to Infectious Disease|0 Comments

A. Observations of “acquired immunity” to diseases and primitive vaccination practices contributed to our understanding of the immune response to infectious agents and the design [...]

5 03, 2021

Other microorganisms as causative agents of disease

Introduction to Infectious Disease|0 Comments

Relative sizes of microorganisms: Protozoa > Red Blood cell > Yeast > Bacteria > Mycoplasma > Viruses Fungi 1.  David Gruby (1841-1845) identified yeast infections [...]

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