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Bacteria vs Virus
Transcript of Bacteria vs Virus
Bacteria are ...
What is the
What are the
pili used for?
What about the
and hereditary material -
DNA and RNA
Protein coat -
; no eating
Viruses are specific - "hold keys" -
. Viruses that infect animals will rarely infect humans.
Why is this??
Are there exceptions to this??
virus DNA combines
with that of the
which is then
and more viral particles are
Sometimes target certain cells rather than many.
Ex. Immune system cells
A disease can be prevented by using
which contain a weakened or dead virus or
A virus can serve to be very useful in genetic engineering. Why is this??
How can viruses
What are some
types of virus
Are they curable??
Prokaryotic - "
Belong to two kingdoms - Archaebacteria (
) and Eubacteria (
) or Anaerobic (
binary fission -conjuction- pilus
Cell wall or
are made of peptidoglycan
Flagella- tail "
and can cause disease, although some are found in the human gut to digest
HOW ELSE ARE BACTERIA USEFUL?
Bacteria can bypass natural defenses either thru digestion, cuts, or lung tissue
WHAT CAUSES A DISEASE like Meningitis??
,chemical substances released by the bacteria, cause the body to function abnormally
HIV or AIDS:
fever, swollen lymph nodes, sore throat, rash, muscle pain and mouth sores leading to AIDS stage where various
infections occur causing death
In this case the virus attacks a certain type of cell which leads to AIDS
Flu like at first, fever, rash, in the form of pustules over the mouth spreading around the entire body
Skin lesions and sometimes stuffy nose
The skin lesions will serve as an entrance for other bacteria causing further infections
Burning pain in stomach, vomiting, and black stools
The bacteria responsible cause inflammation in the stomach which lead to the ulcers.
Sudden severe sore throat, inflamed tonsils, yellow and white patches in throat possible fever and headache
Diseases Caused by a...
Structures of Bacteria
Bacillus - rod shaped
Coccus - spherical
Binary fission - asexual - 2 daughter cells
Conjugation - sexual reproduction - pilus