These results were very helpful in finding out which of these bacteria’s are spore forming and which of them are not. Bacillus Cereus is a spore forming bacteria and therefore can obtain high temperatures without being killed. E-Coli is however not a spore forming bacteria and was killed by the high temperature in 45 seconds. The last bacteria, Seriate Mercenaries is not spore forming but seemed to kill the bacteria at 60 seconds but not at 300 seconds. These results were very helpful in finding out which of these bacteria’s are spore forming and which of them are not.
Bacteria Used: Bacillus Cereus Products Tested I Was the Product Effective or Not? I Yellow Alloys I Not effective I Vaccine I Not effective I Green Alloys I Somewhat effective I Germ X I Not effective I Hydrogen Peroxide I High effective I Necropolis Not effective I Activity 7: Testing Antibacterial Products Bacteria Used: Seriate Mercenaries The antibacterial products that are used for cleaning of the hands and used as an antiseptic for cuts or burns are not effective at killing bacteria. However, Hydrogen peroxide was very highly effective at killing the bacteria that was growing.
The cleaning products that we used are not effective at killing the bacteria like they are supposed to so this could cause major sickness and disease. The antibacterial products that are used for cleaning of the hands and used as an antiseptic for cuts or burns are not effective at killing bacteria. However, Hydrogen peroxide was very highly effective at killing the bacteria that was growing. The cleaning products that we used are not effective at killing the bacteria like they are supposed to so this could cause major sickness and disease.
Conclusion and Analysis One of the experiments performed during this lab was used to see how long a certain species of bacteria have to be boiled before they are killed by heat. In this activity, we used three different species of bacteria which were Escherichia Coli, Bacillus Cereus, and Seriate Mercenaries which were placed in a test tube for each group. Each group was given one of these three species and was told to take a sample on the agar plate by using a swab to trace the number of bacteria that grew after 0 seconds which was used for the control and then 10, 30, 45, 60 and 300 seconds after that.
This experiment had very interesting results in that Seriate Mercenaries had bacteria present at 45 seconds and at 300 seconds but it was not present in the 60 seconds. This was a way of tracking the number of bacteria that you would encounter after the high temperature has tried to kill the microbes. After letting the bacteria grow over a one week period, we found UT which bacteria’s are spore forming and which are not. My hypothesis in this experiment is that all of the 3 species would last for 60 seconds.
My results show that I should reject my hypothesis because after doing the experiment I found that all of these lasted a longer or shorter amount of time in a high temperature than what I predicted. There were some potential sources of error that could have occurred in this experiment. It was difficult to get the sample and place it on the agar plate within the 15 seconds between each time increment. The timing could have been a little bit off when the results were taken.
It is also possible that the water that we used to test our species was either warmer or cooler than it was supposed to be. Heat is used as the main SOUrce to kill microbes along with two other types, incineration and autoclave’s. (1 , 2) The heat in this experiment is used for sterilization and one must consider the type of heat, and most importantly, the time of application and temperature to ensure destruction of all microorganisms. Endoscopes of bacteria are considered the most thermometric of all cells so their destruction guarantees sterility. 1) Moist heat is used to kill microorganisms by denaturing the essential proteins. 1) The amount of time that is used to kill microorganisms is called the thermal death time. Antibiotics can be used to kill microbes in the body. (2) If the wrong microbes are ingested through antibiotics, it will cause you to put a virus in your body that will make you sick. The most important thing to watch for when composing an experiment is the main variables in the experiment and to make sure that you have a control in case of source of error.
It is very important that you use mass amounts of heat to kill microbes and prevent yourself from disease by making this a priority. In the second experiment that we performed during this lab, we tested antimicrobial products to see if they would successfully kill bacteria like they are supposed to as stated on the bottle. In this activity, we tested 6 different antimicrobial products to see if they were effective in killing the bacteria present. The six products that we used were Alloys (yellow), Vaccine, Alloys (green), Germ X hand sanitized, Hydrogen peroxide and Misspoken.
We use antibacterial products to prevent ourselves from disease causing organisms as well as prevention from sickness and bacteria’s. Each group was given an agar plate and we were told o write numbers 1-6 on it to test each antimicrobial product. We were then told to dip the forceps in alcohol and wipe them off with a paper towel then pick up a paper disk and dip it into the product we were testing. Then, transfer the discs onto the agar plate in the right numbered spot. This is a way of tracking the bacteria that will be killed when placed in an antimicrobial solution.
After letting the cultures grow on the agar plates for a week, we will find out which products were effective which of them were not. My hypothesis in this experiment was that all of the products would kill the bacteria present on the gar plate. My results show that I should reject my hypothesis because the only one that was highly effective was hydrogen peroxide. The only other one that was effective at all was the green Alloys and it killed maybe 10% of the bacteria in its area.
There were some potential sources of error that could have occurred during this experiment. One of the things that happened was that the hydrogen peroxide spread into the other areas on the agar plate and caused our results to be altered because it spread too much. Another source of error that could have occurred is that maybe one of the products got mixed with another one n the agar plate which would cause a different outcome. Antibiotics do not fight infections caused by viruses like colds, most sore throats and bronchitis, and some ear infections. 3) Unneeded antibiotics may lead to future antibiotic- resistant infections. Symptom relief might be the best treatment option. (3) If you use an antibacterial antibiotic to cure a virus then you will become very sick. You should always go to the doctor and have them diagnose your symptoms before being given you an antibiotic. This experiment should be used to show you that all things that say they are antimicrobial are not necessarily going to kill the arms or disease infected organisms that your body is carrying.