Download Bacteria and Viruses (SE).

BACTERIA AND VIRUSES
How Bacteria Multiply….Exponentially!
VOCABULARY
• Active immunity:
• Amoebic dysentery:
• Antibiotic:
•Antibody:
•Antimicrobial product:
•Carrier:
•Contagion:
•Disease:
•Epidemic:
•Infectious disease:
•Influenza:
• Noninfectious disease:
• Pathogen:
•Vaccine:
•Vector:
BACTERIAL GROWTH
1. A given bacteria reproduces (splits)
every 5 minutes. If one bacterium
invades the human body, how many
bacteria will be present in the body
after 3 hours?
BACTERIAL GROWTH (CON’T.)
2. A given bacteria reproduces every 3 seconds.
If 2 bacteria are present at the onset of
invasion, how many bacteria are present
after 1 hour?
BACTERIAL GROWTH (CON’T.)
3. A given bacteria reproduces every
20 minutes. If 1 bacterium was
present upon invasion, how long did
it take for 128 bacteria to be
present?
BACTERIAL GROWTH (CON’T.)
4. A given bacteria reproduces every
3 hours. If 20 bacteria are present
upon invasion, how long does it
take for 10,240 bacteria to be
present?
GERMS AND “ME”
• Create a web showing the people you have
come in contact with in the last 24 hours.
– place yourself in the middle of the web and each
person contacted on the outside of the web.