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Bacteria vs Virus

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erica zepeda

on 11 December 2013

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Transcript of Bacteria vs Virus

Bacteria vs Viruses
Bacterial Components
Virus
Bacteria
Bacteria- Prokaryote
Virus Components
Viruses are...
Virus
Bacteria are ...
What is the
capsule
made of?

What are the
pili used for?

What about the
ribosomes?
Contains
proteins
and hereditary material -
DNA and RNA
NOT LIVING
Protein coat -
"
cap
sid"
Will
only reproduce
inside
a cell
; no eating
Viruses are specific - "hold keys" -
receptor site
Specific
. Viruses that infect animals will rarely infect humans.

Why is this??
Are there exceptions to this??
The
virus DNA combines
with that of the
host
which is then
replicated
and more viral particles are
produced
.
Sometimes target certain cells rather than many.
Ex. Immune system cells
A disease can be prevented by using
vaccines,
which contain a weakened or dead virus or
antivirals- medication
A virus can serve to be very useful in genetic engineering. Why is this??
How can viruses
help evolution??

What are some
types of virus
infections?

Are they curable??
Prokaryotic - "
prenucleus
"-
no nucleus
Belong to two kingdoms - Archaebacteria (
ancient
) and Eubacteria (
true bacteria
)
Unicellular -
"single celled"

Ribosomes -
protein factory
Aerobic (
oxygen
) or Anaerobic (
oxygen absent
)
Pilli -
sticky
;
binary fission -conjuction- pilus
DNA
Cell wall or
capsule
are made of peptidoglycan
polysaccharides
Flagella- tail "
motor
"
FOUND EVERYWHERE!!
Infectious
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??
Toxins
or
exotoxins
,chemical substances released by the bacteria, cause the body to function abnormally
Virus
HIV or AIDS:
fever, swollen lymph nodes, sore throat, rash, muscle pain and mouth sores leading to AIDS stage where various
opportunistic
infections occur causing death
In this case the virus attacks a certain type of cell which leads to AIDS

Small Pox:
Flu like at first, fever, rash, in the form of pustules over the mouth spreading around the entire body

Bacteria
Leprosy:
Skin lesions and sometimes stuffy nose
The skin lesions will serve as an entrance for other bacteria causing further infections
Peptic Ulcers:
Burning pain in stomach, vomiting, and black stools
The bacteria responsible cause inflammation in the stomach which lead to the ulcers.
Strep Throat:
Sudden severe sore throat, inflamed tonsils, yellow and white patches in throat possible fever and headache
Diseases Caused by a...
VS
Structures of Bacteria
Bacillus - rod shaped
Spirilla- screws
Coccus - spherical
Reproduction
Binary fission - asexual - 2 daughter cells
Conjugation - sexual reproduction - pilus
Full transcript