Infectious agents and diseases Flashcards

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1
Q

What are pathogenic and virulence ?

A

Pathogenic-is a infectous agent that causes diseases
Virulence- how terrible the disease is (How fast it transmits)

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2
Q

What is a piron?

A
  1. Prion is a protein, which does is not a cell or alive
  2. The infectious proteins effect the neurons and disturb the folding
  3. This mis-folding can lead to neurlogical symtopms
  4. The infectious proteins are transmitted through blood and organ transfussion
  5. Less than 20 nm
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3
Q

What disease does piron cause

A
  1. Transmissible spongy form encephapatheyl (TSE and CJD) creutzfeldt jakobs disease
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4
Q

What is a virus

A
  1. 2-400nm is a cell or active
  2. Needs to be in a host (Animal or human) to work
  3. Known as intracellular obligate parasite
  4. Categoriesed by the genome and the capsids
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5
Q

What diseases does virus cause?

A

1.Respiratory- cold and flu
2.Skin- HPV
3.CNS- Pollio

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6
Q

What is a bacteria?

A

1.It is a prokarytoic , cell that is active
2.0.2-15 micrometres
3.Has a cell wall for prevnt leaking (peptidoglycin) there is a thick one which is gram + and the thin is gram -
4.The bacteria can be aerobic or anaerobic
5.The bacteria can also be intracellular or intracellular

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7
Q

What diseases does bacteria cause?

A

1.chymadia
2.pneumonia

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8
Q

What is fungi and what diseases can it cause?

A
  1. 2-200micrometres, its a cell , alive and eukaryotic
  2. Has a cell wall made by chitin
  3. Can be replicated sexually or asexually e.g Spores
  4. Disease such as thrush and ringworm
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9
Q

What is a protozoa and what diseases does it cause?

A

1.1-50 micrometres, unicellular and eukaryotic
2.Disease- malaria

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10
Q

What is helmith and what disease does it cause?

A
  1. 3mm-10m, eukaryotic and multicellular
  2. Disease types- flease,mites and bed bugs
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