Ch.1 Intro

• Microbiology


  Study of small things that can’t be seen without a microscope.
• Cellular Microbes

  Are made up of Archaea, Bacteria, Protozoa, Algae, Fungi, Helminths
• Acellular Microbe (Neither Eukaryotic nor Prokaryotic)


  Viruses, Prions
• Pathogen

  Microbe causing disease
• Infectious Disease 


  A disease caused by a pathogen present
• Examples of Infectious Diseases

  Covid-19, HIV, AIDS, Tuberculosis, Measles, Hepatitis C
• Examples of Noninfectious Diseases


  Diabetes, OCD, Asthma, Heart Disease
• What do Infections have in common?

  Pathogens
• What is Miasma Theory of Disease?

  Disease caused by the foul smell that contain particles of decaying materials.
• Spontaneous Generation


  Early way of thinking that living things are brought up from vital forces present in nonliving/decomposing matter.
• What is Germ of Theory Disease?

  Infectious Diseases that are caused by Microbes.
• Robert Hooke


  First to look at cells under a microscope.
• Antione Van Leeuwenhoek

  Improved the Microscope
• Edward Jenner


  Created 1st public vaccination for Small Pox.
• Ignaz Semmelweis


  Would influence handwashing/cleaning
• Louis Pasteur


  Debunked Spontaneous Generation
• Joseph Lister


  Introduced Aseptic Techniques in surgery
• Ferdinand Cohn 


  Discovered Endospores
• Robert Koch

  Confirmed Germ Theory of Disease
• Alexander Fleming


  Discovered Penicillin
• Prokaryotes have:

  No Nucleus, Organelles.

  Contain: Singular, Circular Chromosomes

  Contain Ribosome: 70S

  Reproduces: Plants via Binary Fission

  Size: Small/Microscopic
• Eukaryotes have:

  Does have: Nucleus & Organelles

  Contains: Multiple, linear Chromosomes

  Contain Ribosome: 80S

  Reproduction: Animals via Mitosis & Meiosis

  Size: Big
• Helminths = Cellular Microbe/ Eukaryotic

  
• Fungus = Cellular Microbe/ Eukaryotic

  
• Bacterium = Cellular Microbe/ Prokaryotic

  
• Protozoan = Cellular Microbe/ Eukaryotic

  
• Virus = Acellular Microbe/ Not Prokaryotic nor Eukaryotic

  
• Prion = Acellular Microbe/ Not Prokaryotic nor Eukaryotic

  
• Smallest too biggest Pathogens

  Small : Virus => Bacteria => Protozoan/Fungi => Helminths :Big
• Where do Viruses locate in the tree of life?

  They don’t
• What is a Virus?

  It is a protein coated genetic element (DNA or RNA).

  It cannot duplicate without having a Host.
• 2 arguments on why Viruses aren’t alive

  First argument: Viruses don‘t have cellular organization

  Second argument: It doesn’t have a metabolism
• What are Human Microbes?

  Are normal microbes like Fungi, Bacteria, Archaea, Protozoa and Viruses found in the human body that aren’t harmful and can also be beneficial.