How Does Manufacture Affect The Effect Of Bacterial Growth?
An independent variable is a factor that is changed throughout the experiment to determine the results. In this case, the independent variable were the types of cleaner used (Palmolive, Betadine, Dettol). These were changed throughout the experiment to compare different effects of cleaners towards bacterial growth.
A dependent variable is the factor in which is being measured and observed. In this case, the zone of inhibition was measured which was used to determine the area and percentage of the bacteria growth.
Constant variables are the factors in which are kept constant to increase accuracy and ensure fairness of the experiment. If the specific variables aren’t kept constant, the results wouldn’t be clear if the independent variable caused the results …show more content…
This was done by using a pipette and using two drops of bacteria for each plate.
Due to time constraints. The sample size for the experiment was only repeated once. It is desirable to have an increased sample size as it ensures higher accuracy in results. Results are able to be compared and averages can be made which reduces the effect of random errors. Limited materials also reduced the sample size as there was on a limited number of materials that could be ordered.
The results show that dettol and betadine had the largest zone of inhibition with an area of 3.14 cm2. Even though betadine had a higher price with $75.33 per 100 mL dettol had matched the area for only $0.80. Palmolive demonstrated the lowest area of zone of inhibition with 1.77 cm2 for $0.56. Due to the areas of dettol and betadine being the same, the percentages were also the same with 5.14% for of clean area of plate and 94.86% of bacteria left on the plate. Whereas palmolive had 3.04% of clean area on the plate and 96.96% of bacteria left on the
A dependent variable is the factor in which is being measured and observed. In this case, the zone of inhibition was measured which was used to determine the area and percentage of the bacteria growth.
Constant variables are the factors in which are kept constant to increase accuracy and ensure fairness of the experiment. If the specific variables aren’t kept constant, the results wouldn’t be clear if the independent variable caused the results …show more content…
This was done by using a pipette and using two drops of bacteria for each plate.
Due to time constraints. The sample size for the experiment was only repeated once. It is desirable to have an increased sample size as it ensures higher accuracy in results. Results are able to be compared and averages can be made which reduces the effect of random errors. Limited materials also reduced the sample size as there was on a limited number of materials that could be ordered.
The results show that dettol and betadine had the largest zone of inhibition with an area of 3.14 cm2. Even though betadine had a higher price with $75.33 per 100 mL dettol had matched the area for only $0.80. Palmolive demonstrated the lowest area of zone of inhibition with 1.77 cm2 for $0.56. Due to the areas of dettol and betadine being the same, the percentages were also the same with 5.14% for of clean area of plate and 94.86% of bacteria left on the plate. Whereas palmolive had 3.04% of clean area on the plate and 96.96% of bacteria left on the