E. Coli Strain Lab Report Results
Research Question: E. coli strain MM294 is placed under different sound frequencies. Does sound frequency affect the growth of E. coli strain MM294?
Background:
Noise pollution is a problem in urban areas and can be the cause of several health issues and increase risks of disease. It is interesting that even something inanimate like sound could affect so much of biological processes. The movement of energy through matter produces sound. Sound is a mechanical wave that travels in waves and has the ability to move particles. Noise pollution is the result of the rapid and loud buzzing of a city, factory, piece of machinery, etc. The vibrations caused by energy vibrate the air particles around it and produce sound waves. These …show more content…
I made the sound load boxes by adhering the pads to the panels then placing the panels together in a cube and adhering them with glue and nails but left the top unsecured. I constructed the noise cancelling compartment out by cutting the padding in order to hold a petri dish. I cut three whole in the padding and layered four pads to leave the empty space in the middle. I placed the plywood panels on the top and bottom and secured the bottom and left the top unsecured for access. I made 2 liters of agar and poured it evenly into 12 petridishes with an area of 18.096 cm2. Each Petri dish was inoculated with an inoculation tube using sanitation methods and intending to keep the amount of bacteria added constant. The bacteria was then set into the sound load chamber. The speakers were turned on according to the frequency being tested then the dab level was set for the sake of being consistent. The bacteria was then observed after 48 hours and the plate coverage was recorded by measuring the bacterial colonies and calculating their area respective to the total are of the plate. The same process was done for the noise reduced
Background:
Noise pollution is a problem in urban areas and can be the cause of several health issues and increase risks of disease. It is interesting that even something inanimate like sound could affect so much of biological processes. The movement of energy through matter produces sound. Sound is a mechanical wave that travels in waves and has the ability to move particles. Noise pollution is the result of the rapid and loud buzzing of a city, factory, piece of machinery, etc. The vibrations caused by energy vibrate the air particles around it and produce sound waves. These …show more content…
I made the sound load boxes by adhering the pads to the panels then placing the panels together in a cube and adhering them with glue and nails but left the top unsecured. I constructed the noise cancelling compartment out by cutting the padding in order to hold a petri dish. I cut three whole in the padding and layered four pads to leave the empty space in the middle. I placed the plywood panels on the top and bottom and secured the bottom and left the top unsecured for access. I made 2 liters of agar and poured it evenly into 12 petridishes with an area of 18.096 cm2. Each Petri dish was inoculated with an inoculation tube using sanitation methods and intending to keep the amount of bacteria added constant. The bacteria was then set into the sound load chamber. The speakers were turned on according to the frequency being tested then the dab level was set for the sake of being consistent. The bacteria was then observed after 48 hours and the plate coverage was recorded by measuring the bacterial colonies and calculating their area respective to the total are of the plate. The same process was done for the noise reduced