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Allied Health Microbiology: Summary

Allied Health Microbiology
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table of contents
  1. Cover
  2. Title Page
  3. Copyright
  4. Table Of Contents
  5. Preface
  6. Forward
  7. Chapter 1: An Invisible World
    1. 1.1 What Our Ancestors Knew
    2. 1.2 A Systematic Approach
    3. 1.3 Types of Microorganisms
    4. Summary
  8. Chapter 2: The Cell
    1. 2.1 Spontaneous Generation
    2. 2.2 Foundations of Modern Cell Theory
    3. 2.3 Unique Characteristics of Prokaryotic Cells
    4. Summary
  9. Chapter 3: Prokaryotic Diversity
    1. 3.1 Prokaryote Habitats, Relationships, and Microbiomes
    2. Summary
  10. Chapter 4: The Eukaryotes of Microbiology
    1. 4.1 Unicellular Eukaryotic Parasites
    2. 4.2 Parasitic Helminths
    3. 4.3 Fungi
    4. Summary
  11. Chapter 5: Acellular Pathogens
    1. 5.1 Viruses
    2. 5.2 The Viral Life Cycle
    3. 5.3 Prions
    4. Summary
  12. Chapter 6: Microbial Biochemistry
    1. 6.1 Microbial Biochemistry
    2. Summary
  13. Chapter 7: Microbial Growth
    1. 7.1 How Microbes Grow
    2. 7.2 Oxygen Requirements for Microbial Growth
    3. 7.3 The Effects of pH on Microbial Growth
    4. 7.4 Temperature and Microbial Growth
    5. Summary
  14. Chapter 8: Modern Applications of Microbial Genetics
    1. 8.1 Whole Genome Methods and Pharmaceutical Applications of Genetic Engineering
    2. 8.2 Gene Therapy
    3. Summary
  15. Chapter 9: Control of Microbial Growth
    1. 9.1 Controlling Microbial Growth
    2. 9.2 Testing the Effectiveness of Antiseptics and Disinfectants
    3. Summary
  16. Chapter 10: Antimicrobial Drugs
    1. 10.1 Fundamentals of Antimicrobial Chemotherapy
    2. 10.2 Mechanisms of Antibacterial Drugs
    3. 10.3 Mechanisms of Other Antimicrobial Drugs
    4. 10.4 Drug Resistance
    5. 10.5 Testing the Effectiveness of Antimicrobials
    6. 10.6 Current Strategies for Antimicrobial Discovery
    7. Summary
  17. Chapter 11: Microbial Mechanisms of Pathogenicity
    1. 11.1 Characteristics of Infectious Disease
    2. 11.2 How Pathogens Cause Disease
    3. 11.3 Virulence Factors of Bacterial and Viral Pathogens
    4. Summary
  18. Chapter 12: Disease and Epidemiology
    1. 12.1 The Language of Epidemiologists
    2. 12.2 Tracking Infectious Diseases
    3. 12.3 Modes of Disease Transmission
    4. 12.4 Global Public Health
    5. Summary
  19. Chapter 13: Innate Nonspecific Host Defenses
    1. 13.1 Physical Defenses
    2. 13.2 Chemical Defenses
    3. 13.3 Cellular Defenses
    4. 13.4 Pathogen Recognition and Phagocytosis
    5. 13.5 Inflammation and Fever
    6. Summary
  20. Chapter 14: Adaptive Specific Host Defenses
    1. 14.1 Overview of Specific Adaptive Immunity
    2. 14.2 Major Histocompatibility Complexes and Antigen-Presenting Cells
    3. 14.3 T Lymphocytes and Cellular Immunity
    4. 14.4 B Lymphocytes and Humoral Immunity
    5. 14.5 Vaccines
    6. Summary
  21. Chapter 15: Diseases of the Immune System
    1. 15.1 Hypersensitivities
    2. 15.2 Autoimmune Disorders
    3. 15.3 Organ Transplantation and Rejection
    4. Summary
  22. Chapter 16: Skin and Eye Infections
    1. 16.1 Anatomy and Normal Microbiota of the Skin and Eyes
    2. 16.2 Bacterial Infections of the Skin and Eyes
    3. 16.3 Viral Infections of the Skin and Eyes
    4. 16.4 Mycoses of the Skin
    5. 16.5 Helminthic Infections of the Skin and Eyes
    6. Summary
  23. Chapter 17: Respiratory System Infections
    1. 17.1 Anatomy and Normal Microbiota of the Respiratory Tract
    2. 17.2 Bacterial Infections of the Respiratory Tract
    3. 17.3 Viral Infections of the Respiratory Tract
    4. Summary
  24. Chapter 18: Urogenital System Infections
    1. 18.1 Anatomy and Normal Microbiota of the Urogenital Tract
    2. 18.2 Bacterial Infections of the Urinary System
    3. 18.3 Bacterial Infections of the Reproductive System
    4. 18.4 Viral Infections of the Reproductive System
    5. 18.5 Fungal Infections of the Reproductive System
    6. 18.6 Protozoan Infections of the Urogenital System
    7. Summary
  25. Chapter 19: Digestive System Infections
    1. 19.1 Anatomy and Normal Microbiota of the Digestive System
    2. 19.2 Microbial Diseases of the Mouth and Oral Cavity
    3. 19.3 Bacterial Infections of the Gastrointestinal Tract
    4. 19.4 Viral Infections of the Gastrointestinal Tract
    5. 19.5 Protozoan Infections of the Gastrointestinal Tract
    6. 19.6 Helminthic Infections of the Gastrointestinal Tract
    7. Summary
  26. Chapter 20: Circulatory and Lymphatic System Infections
    1. 20.1 Anatomy of the Circulatory and Lymphatic Systems
    2. 20.2 Bacterial Infections of the Circulatory and Lymphatic Systems
    3. 20.3 Viral Infections of the Circulatory and Lymphatic Systems
    4. 20.4 Parasitic Infections of the Circulatory and Lymphatic Systems
    5. Summary
  27. Chapter 21: Nervous System Infections
    1. 21.1 Anatomy of the Nervous System
    2. 21.2 Bacterial Diseases of the Nervous System
    3. 21.3 Acellular Diseases of the Nervous System
    4. Summary
  28. Creative Commons License
  29. Recommended Citations
  30. Versioning

Summary

1.1 What Our Ancestors Knew

  • Microorganisms (or microbes) are living organisms that are generally too small to be seen without a microscope.
  • Throughout history, humans have used microbes to make fermented foods such as beer, bread, cheese, and wine.
  • Long before the invention of the microscope, some people theorized that infection and disease were spread by living things that were too small to be seen. They also correctly intuited certain principles regarding the spread of disease and immunity.
  • Antonie van Leeuwenhoek, using a microscope, was the first to actually describe observations of bacteria, in 1675.
  • During the Golden Age of Microbiology (1857–1914), microbiologists, including Louis Pasteur and Robert Koch, discovered many new connections between the fields of microbiology and medicine.

1.2 A Systematic Approach

  • Carolus Linnaeus developed a taxonomic system for categorizing organisms into related groups.
  • Binomial nomenclature assigns organisms Latinized scientific names with a genus and species designation.
  • A phylogenetic tree is a way of showing how different organisms are thought to be related to one another from an evolutionary standpoint.
  • The first phylogenetic tree contained kingdoms for plants and animals; Ernst Haeckel proposed adding kingdom for protists.
  • Robert Whittaker’s tree contained five kingdoms: Animalia, Plantae, Protista, Fungi, and Monera.
  • Carl Woese used small subunit ribosomal RNA to create a phylogenetic tree that groups organisms into three domains based on their genetic similarity.

1.3 Types of Microorganisms

  • Microorganisms are very diverse and are found in all three domains of life: Archaea, Bacteria, and Eukarya.
  • Archaea and bacteria are classified as prokaryotes because they lack a cellular nucleus. Archaea differ from bacteria in evolutionary history, genetics, metabolic pathways, and cell wall and membrane composition.
  • Archaea inhabit nearly every environment on earth, but no archaea have been identified as human pathogens.
  • Eukaryotes studied in microbiology include algae, protozoa, fungi, and helminths.
  • Algae are plant-like organisms that can be either unicellular or multicellular, and derive energy via photosynthesis.
  • Protozoa are unicellular organisms with complex cell structures; most are motile.
  • Microscopic fungi include molds and yeasts.
  • Helminths are multicellular parasitic worms. They are included in the field of microbiology because their eggs and larvae are often microscopic.
  • Viruses are acellular microorganisms that require a host to reproduce.
  • The field of microbiology is extremely broad. Microbiologists typically specialize in one of many subfields, but all health professionals need a solid foundation in clinical microbiology.

Annotate

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Chapter 2: The Cell
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Copyright © 2019 by Open Stax and Linda Bruslind Allied Health Microbiology by Open Stax and Linda Bruslind is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.
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