How Does Glucose Concentration Affect The Rate Of Fermentation
The aim of this experiment was to investigate the effect that a glucose concentration has on the rate of fermentation. This was done by adding a variety of different glucose concentration into a test tube, siting in a water bath. The carbon dioxide would be collected in the test tube and therefore would measure the rate of fermentation. The results parsley supported the hypothesis that, “If the glucose concentration increases, the rate of fermentation increases, therefore the more carbon dioxide released”.
Background
All cells need to obtain energy through the breakdown of organic molecules such as glucose. This process is known as respiration. When cells find it difficult to obtain oxygen that they need for aerobic respiration, the process …show more content…
Enzymes such as those found in yeast catalyse this reaction and therefore it can be affected by a number of factors. If enzymes do not have their optimal temperature and pH they will not function at their optimal and this will therefore change the rate of fermentation. Yeast cells would also effect this reaction, as the enzymes in the yeast cells influence the rate of fermentation. In this practical we investigated how much carbon dioxide would be produced at each glucose concentration and the rate of fermentation.
Aim: The aim of the experiment is to investigate if the amount of glucose added affects the amount of carbon dioxide produced
Hypothesis: If the glucose concentration increases, the rate of fermentation increases, therefore the more carbon dioxide released.
Independent Variable: Glucose concentrations (5%, 10%, 20%, 50%)
Dependent Variable: The rate of fermentation (carbon Dioxide …show more content…
We should have had a variety of samples of each glucose solution. Replicating allows us to gain more accurate results, as we are able to compare each sample to see which result may be correct. If we replicated each glucose sample, our experiment would receive more efficient and reliable results. Another weakness that could have arisen during the practical could have been our ability to keep the temperature of the water bath at 35 degrees. Lastly, a weakness could be not repeating the experiment. Repeating the experiment allows us to receive more precise, accurate and reliable
Background
All cells need to obtain energy through the breakdown of organic molecules such as glucose. This process is known as respiration. When cells find it difficult to obtain oxygen that they need for aerobic respiration, the process …show more content…
Enzymes such as those found in yeast catalyse this reaction and therefore it can be affected by a number of factors. If enzymes do not have their optimal temperature and pH they will not function at their optimal and this will therefore change the rate of fermentation. Yeast cells would also effect this reaction, as the enzymes in the yeast cells influence the rate of fermentation. In this practical we investigated how much carbon dioxide would be produced at each glucose concentration and the rate of fermentation.
Aim: The aim of the experiment is to investigate if the amount of glucose added affects the amount of carbon dioxide produced
Hypothesis: If the glucose concentration increases, the rate of fermentation increases, therefore the more carbon dioxide released.
Independent Variable: Glucose concentrations (5%, 10%, 20%, 50%)
Dependent Variable: The rate of fermentation (carbon Dioxide …show more content…
We should have had a variety of samples of each glucose solution. Replicating allows us to gain more accurate results, as we are able to compare each sample to see which result may be correct. If we replicated each glucose sample, our experiment would receive more efficient and reliable results. Another weakness that could have arisen during the practical could have been our ability to keep the temperature of the water bath at 35 degrees. Lastly, a weakness could be not repeating the experiment. Repeating the experiment allows us to receive more precise, accurate and reliable