organism without a true nucleus
- 10x smaller then eukaryotics
- & Bacteria
organisms with a true nucleus
- Fungi, Plants, Animals
- occur in large numbers
- lives in places many other organisms cannot
- most are beneficial some harmful
earliest record of microbes work
antonie van leeuwenhoek
created the first single lens microscope
known as the father of bacteriology and protozoology
- developed s-shaped flack
- discovery of pathogens and the germ theory diesase
- fermentation and pasteurization
application of a high heat for a short time is called pasteurization
- •1860s: Joseph Lister used a chemical
- disinfectant to prevent surgical wound infections after looking at Pasteur’s work. Introduced Aseptic Techniques.
- (Sepsis – the presence of pathogenic organisms)
- •1876: Robert Koch provided proof that a
- bacterium causes anthrax and provided the experimental steps, Koch’s postulates, used to prove that a specific
- microbe causes a specific disease.
classifying living things
- and recording the traits of organisms so they can be named and classified
- •Levels of Classification: 3
- Archaea, Eubacteria, Eukarya.
- Archaeabacteria, Bacteria, Protists, Fungi,
- Plants, Animals
binomial system of nomenclature
- The generic (genus) name followed by the
- species name
- Generic part is capitalized, species is
- Both are italicized or underlined if
- italics aren’t available
- Staphylococcus aureus,
- Homo sapien, T. rex.
the degree of relatedness between groups of living things based on ancestry/evolution.
- usually represented by a tree- showing the divergent nature of evolution
- hereditary information in living things changes gradually through time; these changes
- result in structural and functional changes through many generations