Transcript Bacteria and virus ppt

Bacteria
Cocci = individual, circular bacteria
Streptococcus = chains of
circular bacteria
Staphylococcus = clusters of
circular bacteria
Bacilli = rod shaped bacteria
Spirilla = spiral shaped bacteria
Welcome B6! Please Do Now…
1. Prepare for class: ipad, journal
2. Find your new seat:
Table 1: Renata, Heather, Eric, Robby
Table 2: Sam, Jessica, Sydney, Erik
Table 3: Lulu, Ashton, Carlyn, Jack
Table 4: Eddie, Shea, Alex, April
Table 5: Brenden, Rachel, Bria, Carlos
3. Take the two handouts from the front.
4. Record you homework below.
Tonight’s HW: Complete the Vaccine Webquest.
Bacteria = Prokaryotic!
Compare to Human Cells…
How do we treat a bacterial infection?
Antibiotics!
Your body will naturally try to fight the
infection, but when it becomes too
overwhelming, we need antibiotics.
What was the first antibiotic?
Penicillin!
Discovery:
How do antibiotics work?
Two types:
1. Bactericidal = KILLS the bacteria (interferes
with cell wall)
2. Bacteriostatic = stops bacteria from
multiplying or stops protein production
What about
viruses?
What is a virus?
Definition…
A microscopic
particle capable of
infecting cells of
living organisms
and inserting its
genetic material.
What’s this???
“Trouble in a small package.”
A virus is made up of two main components:
1. Core of genetic material
2. Protein coat
Viruses are NOT cells. Therefore they do not
contain any of the cell’s organelles.
Enveloped Virus
Examples
Influenza Virus
HIV Virus
Bacteriophages
Viruses need a host.
Now
what?
Watch This!
http://www.npr.org/blogs/krulwich/2011/06/01
/114075029/flu-attack-how-a-virus-invadesyour-body
http://www.youtube
.com/watch?v=Rpj0
emEGShQ
How do we treat viral infections?
Hint: No treatment…
just prevention!
Complete the vaccine
webquest on your
iPad and complete
the questions.
On a group googledoc…
1.
2.
3.
4.
5.
6.
Independent Variable
Dependent Variable
Control Group
Three Constants
Procedure for YOUR sanitation method
Observations
Done? Do Scenario 3!
1. This season’s flu strain is being called one of the worst ever,
and people are starting to panic. Amidst this epidemic, you are
in Europe and want to return home. What precautions would
you take to protect the health of both you and your family?
2. A zombie pandemic threatens to cause the extinction of every
human on the planet. When zombies bite humans, the infected
humans eventually turn into the undead. It is unclear whether
the cause of this transformation is a bacterium or virus. What
steps should be taken by the CDC to prevent apocalyptic spread
of the living dead?