Glucose Found to Produce the Most Co2 in Sugar and Yeast Fermintation Experiment Essay Example

we used 4 large test in which we placed the dry active yeast and 30ml of heated distilled water. We also used a balance to weigh and a spatula to acquire the yeast, 250ml beakers, and a 10 ml pipette to measure. Of what was measured were 10% fructose, glucose, and sucrose solutions.We also used a test tube rack to hold the test tubes and a clock to stir the solutions every fifteen minutes with balloons tied to the top and markers used to label the test tubes. PROCEDURE: The procedure for this experiment was to first obtain four balloons and blow them up in order to stretch them.

Then obtain and fill the four large test tubes each with thirty milliliters of warm forty degrees Celsius water and two grams of dry yeast which was weighed on a scale and scooped out by a spatula. After five milliliters of water, ten percent glucose, fructose or sucrose went into one of the four test tubes.Then parafilm was placed on top of each of the test tubes to seal them and they were swirled activating the yeast through rehydration. After swirling the film was removed and the balloons were tightly placed on the test tubes.

Then finally observed the tubes build up of CO2 all the while swirling gently every fifteen minutes, recording observations. RESULTS: End of Experiment All values on graph are just shown by height representing amount ignore the y-axis numbers, water having no CO2, glucose having the most, sucrose second most and fructose the least.Fifteen Minutes into Experiment Test tubeSubstrateCO2 Produced 1Waterleast 2GlucoseMost 3SucroseLast 4fructoseMiddle End Test tube Substrate CO2 Produced 1WaterNone 2GlucoseMost

3Sucrose Middle 4FructoseLeast DISCUSSION: At the end of our experiment sucrose was actually the winner of the most carbon dioxide however; DR. Sommers informed us that this was because the reaction of the glucose solution with the yeast had caused many CO2 bubbles to block up the rim not letting the gas fill up the balloon.The balloon was forgotten to blow up the balloons but luckily were still able to get pretty good results.

The reason we believed glucose to be the most is because that is what is most commonly used in cellular respiration. Water which does not even have carbon in it of course was the least producing none. Fructose even though starting off strong had the least of the sugar solution most likely due to it being still a carbon sugar but less commonly used in cellular fermentation Sucrose had the second most because it is a combination of glucose and fructose.Our results helped supporting that glucose produces the most CO2 in cellular fermentation (CELLULAR METABOLISM AND FERMENTATION). REFRENCES: Works Cited "CELLULAR METABOLISM AND FERMENTATION.

" <http://www. emc. maricopa. edu/faculty/farabee/biobk/biobookglyc. html>.

"Cellular Respiration. " 5 Mar. 2008. <http://users.

rcn. com/jkimball. ma. ultranet/biologypages/c/cellularrespiration.

html>. King, Michael W. "The Individual Reactions of Glycolysis. " IU School of Medicine.

18 Aug. 2008 <http://themedicalbiochemistrypage. org/glycolysis. html>.