Microbiology Unit 1
Ferdinand Cohn
Discovered and made a detailed description of heat-resistant bacterial endospores (thus clarifying why heat would sometimes fail to eliminate all microorganisms)
Scientific names are _________ when written in print and ____________when written by hand.
Italicized, Underlined
TDP
Thermal Death Point
Scraped plaque and looked at it
Antoine Yan Leeowenhoek
Who is the father of microbiology
Anton van Leeuwenhoek
Who introduced the modern word "sterile"?
Ferdinand Cohn
Name the three ways prokaryotes and Eukaryotes differ?
1. The way their DNA is packaged
2. The makeup of their cell wall
3. Their internal structures
AHP
Accelerated hydrogen peroxide
Robert Hook
Discovered cell structures/cells by looking at a tree
True or false: Disinfection kills bacterial endospores.
False
Name the 6 types of microorganisms?
1. Bacteria
2. Archaea
3. Protozoa
4. Fungi
5. Helminths
6. Viruses
Name three ways bacteria can be arranged?
1. Diploccus (pairs)
2. Streptococcus (chains)
3. Staphylococcus (cluster)
________ devices do not touch the client or only touch intact skin and require low-level disinfection.
non-critical devices
Discovered micro-organisms cause disease
Oliver Wendell Holmes and Semme Lewis
Name the 4 methods of microbial control used outside the body?
1. Sterilization
2. Disinfection
3. Decontamination (also called sanitization)
4. Antisepsis
Name some bacteria causing diseases
1. Streptococcus Pneumoniae
2. Streptococcus Pyogenes
3. Staphylococcus aureus
4. Clostridium Tetani
True or False: A glycocalyx is called a CAPSULE when it is more tightly bound to the sell then the slime layer is.
True
Causes Of Sterilization FailurePotential Problems
Improper cleaning of instruments
Improper packaging
Improper loading of sterilizer
Improper timing
Improper temperature
Improper method of sterilization
Hand Hygiene
Holmes/Semmelweis
List examples of Helminths
Tapeworms, flukes, roundworms
What is spontaneous generation?
the belief that invisible vital forces present in matter led to the creation of life
What is the cytoplasmic membrane?
It surrounds the cytoplasm and is composed of lipids and protein substances
Seven Steps to Instrument Processing
Holding (presoaking)
Precleaning
Corrosion control, drying, lubrication
Packaging
Sterilization or high-level disinfection
Sterilization monitoring
Handling processed instruments
Infrared radiation to irradiate bacterial spores
Tyndall
Capsules aid in their adhesion to the host. Because of their consistency, they avoid_____________ by the host defense cell.
Phagocytosis