Name ______________________________________________
Period ________
Antibacterial Products Analysis Questions
1. Which antibacterial product was the most effective at inhibiting the growth of M. luteus bacteria?
2. Which antibacterial product was the most effective at inhibiting the growth of E. coli?
3. Which product was the least effective at controlling the growth of each bacterium?
4. Did there seem to be any difference between the data for M.luteus and E. coli? For example, for a single antibacterial
product, was the bacterial growth different for the two bacteria?
5. If you saw a difference in number 4, suggests reasons to explain any differences. If you didn’t see any difference,
suggest a reason why there might not have been one.
6. Were these results what you expected? Explain why/why not for each product used.
7. Write down a list of procedural factors (errors) that contributed to any inaccuracies in this experiment.
8. What changes could be made to improve these inaccuracies.
9. Evaluate your hypothesis. Do the data support it? Explain.
10. List several reasons why we should use cleaners and household products that have antibacterial properties.
11. List several reasons why we should not use this type of household product.
BACTERIA AND ANTIBACTERIAL PRODUCTS – DATA/OBSERVATIONS: Write your observations here. Write ONLY what you are able to
see. Do not state “nothing happened” or “the bleach worked better than the hand sanitizer”. Be specific. Were there any clear
areas indicating that the bacteria had not been able to grow? If so, what was the shape? How big (mm.)?
MICROCOCCUS LUTEUS
Quadrant 1
Product:
_______________
Quadrant 2
Product:
_______________
Quadrant 3
Product:
_______________
Quadrant 4
Product:
_______________
ESCHERICHIA COLI
BACTERIA AND ANTIBACTERIAL PRODUCTS – DATA/OBSERVATIONS: Sketch your results here. Be sure to include a key that explains
what is in each quadrant and explains what you drew.
M. luteus + antibacterial products
4
1
3
2
E. coli + antibacterial products
4
1
3
2