Utilisateur
Observation and question
Hypothesis
Experimentation and data collection
Results and data analysis
Conclusion
In microbiology, a scientific hypothesis is a tentative, testable explanation for a natural phenomenon. It's the first step in the scientific method.
A theory explains a natural phenomenon that is validated through observation and experimentation. A hypothesis is an educated guess based on certain data that acts as a foundation for further investigation.
experimental variables are characteristics or factors that are manipulated and measured to test a hypothesis.
a control variable is a constant, unchanged element that is not the primary focus of the experimenter.
Carl Linnaeus
kingdom - phylum - class - order-family genus species
the domain
the genus
It is always written in italics (if typed) or underlined (handwritten). The first letter of genus name is always capitalized. However, the first letter of species is not capitalized. For example, the scientific name of human is Homo sapiens.
The Archaea, the Bacteria ,and the Eukarya
animal, plant,fungi,protista,and monera
Microbes within the domains Bacteria and Archaea are all prokaryotes (their cells lack a nucleus), whereas microbes in the domain Eukarya are eukaryotes (their cells have a nucleus).
protists and bacteria
the study of microscopic organisms, also known as microbes
founder-Antoni Van Leeuwenhoek
the application of chemistry to the study of biological processes at the cellular and molecular level.
founder-Carl Neuberg
the cause or causes of a disease.
founder
founder-N/A
the study of how often diseases occur in different groups of people and why
founder- John snow
the study of the immune system
founder-Louis Pasteur
Treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing.
founder-Paul Ehrlich
an obsolete theory that states that living organisms can originate from inanimate objects. Other common examples of spontaneous generation were that dust creates fleas, maggots arise from rotting meat
used phenol (known at the time as carbolic acid) as a disinfectant.
founder- Joseph Lister
The microorganism must be found in abundance in all organisms suffering from the disease, but should not be found in healthy organisms
founder-Robert Koch