Biology ia
002141-0012
Nuba Jackson IB Biology
Microbiology IA
How effective is Lysol in the reduction of bacterial growth compared to Pinesol in reduction of E. Coli growth in agar at room temperature?
Background Information: Pinesol and Lysol are both common household disinfectants that make very big commercial claims; both claim to kill 99.9 percent of bacteria. Lysol contains Phenol which is a highly volatile organic compound. Phenol is a carbolic acid found in some household cleaning supplies. Phenol is very toxic and because of this it is designed to kill bacteria. The phenol within the Lysol causes the environment where the bacteria thrive to be uninhabitable. Pinesol has several other organic compounds in it as well but none as volatile as Phenol, yet some consumers say that Pinesol is just as useful as Lysol. Pinesol contains allkyl and isophryll acohol which are both do not disrupt the environment of the bacteria as effectively. variables
Measurement
range
Independent
Lysol and pinesol
Concentration
2-3 milliliters
dependant
Bacterial growth
colonies
5-7 Colonies
Controls
Uses
how
Agar plate
The same agar allows this specific type of bacteria to grow; and adds consistency to environment.
Use same type of agar plates.
moisture
Allows researcher to know how bacteria reacts with condensations
Use same incubator for storage
temperature
Adds consistency to environment and gives bacteria optimum environment for growth.
Use same incubator for storage
Type of bacteria
Adds consistency for experiment and is a bacterium
Use same type of bacteria (E. Coli)
Hypothesis: I think the Phenol in the Lysol will cause the most significant reduction in
Nuba Jackson IB Biology
Microbiology IA
How effective is Lysol in the reduction of bacterial growth compared to Pinesol in reduction of E. Coli growth in agar at room temperature?
Background Information: Pinesol and Lysol are both common household disinfectants that make very big commercial claims; both claim to kill 99.9 percent of bacteria. Lysol contains Phenol which is a highly volatile organic compound. Phenol is a carbolic acid found in some household cleaning supplies. Phenol is very toxic and because of this it is designed to kill bacteria. The phenol within the Lysol causes the environment where the bacteria thrive to be uninhabitable. Pinesol has several other organic compounds in it as well but none as volatile as Phenol, yet some consumers say that Pinesol is just as useful as Lysol. Pinesol contains allkyl and isophryll acohol which are both do not disrupt the environment of the bacteria as effectively. variables
Measurement
range
Independent
Lysol and pinesol
Concentration
2-3 milliliters
dependant
Bacterial growth
colonies
5-7 Colonies
Controls
Uses
how
Agar plate
The same agar allows this specific type of bacteria to grow; and adds consistency to environment.
Use same type of agar plates.
moisture
Allows researcher to know how bacteria reacts with condensations
Use same incubator for storage
temperature
Adds consistency to environment and gives bacteria optimum environment for growth.
Use same incubator for storage
Type of bacteria
Adds consistency for experiment and is a bacterium
Use same type of bacteria (E. Coli)
Hypothesis: I think the Phenol in the Lysol will cause the most significant reduction in