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BIO 220 MICROBIOLOGY EXAM 1 QUESTIONS WITH COMPLETE ANSWERS

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BIO 220 MICROBIOLOGY EXAM 1 QUESTIONS WITH COMPLETE ANSWERS

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Joesph Lister


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- (1860's) First to utilize hand washing and misting operating rooms with
antiseptic chemicals
*used carbolic acid (phenol)
- Techniques became the foundation for modern microbial control still in
use today.




Apicomplexans ( sporozoa )


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, no adult motility structures, must live inside host cells as intracellular
parasites




3 types of Mycosis


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1) Systemic

2) Subcutaneous


3) Cutaneous (also called dermatomycosis)




Apicomplexans


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* (parthogenic protozoa)


- Some protozoa are not motile in their adult forms and are obigate
intracellular parasites. These organisms have a complex of speacial
organelles on the apex (tip) of their cells which contain enzymes that
penetrate the host's tissues. They are called apicomplexans and may have a
complex life cycle that invoves many hosts.




Kary Mullins


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, (Nobel Prize 1993); ability to detect tiny amounts of DNA and amplify for
study; used to discover new organisms, diagnosing diseases and crime
scene investigation.




Alexander Fleming


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- Scottish bacteriologist
- Discovered the first antibiotic (chemicals produced naturally by bacteria
or fungi which inhibit the growth of another microorganism)




Septa


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cross walls dividing hyphae into segments




The general Characteristics of Fungi


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- Kingdom: Fungi


- Eukaryotes

- Unicellular ( Yeast ) or Multicellular ( Molds )

* Cell wall present: contains Chitin

, - Molds reproduce sexually or asexually by Spores

- Heterotrophs; nutrients are absorbed by spores

- No motility structures

- Fungal spores are important in Fungal Identification




General characteristics of Protozoa


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- Kingdom: Protista

- Eukaryotes

- Unicellular

- Heterophs

- Reproduce asexually or sexually by conjugation

- Classified by locomotion (way they move)


.* Lack cell wall

- Some protozoa produce a protective capsule called a cyst. This process
is known as encystment allows the organism to survive unfavorable
conditions.




The Ring Stage


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