Introduction
yeast lives by feeding on kales, expelling carbon dioxide. The more yeast that is added the more carbon dioxide will be produced. barm combined with a dough creates so lots vaunt because in one gram of yeast in that location are about 28 billion cells. Bubbles can be seen when the yeast is working. The process could be called fermentation. This works in a similar fashion to the beer making process.
Yeast is a pillowcase of fungi when it has the right conditions (warmth and moisture) it grows. Yeast uses its own enzymes to break shoot food. However none of this is possible if sugar is not register in the mix. dulcorate is the food that yeast relies upon to activate. The more sugar added the greater the gas and the greater the rise.
Aim:
The aim of the prove is to see how much carbon dioxide is produced when different amounts of yeast, water and sugar are mixed together in a flaskful with a fly covering the opening to capture the gas produced.
Hypothesis:
If more yeast is added to the mixture then there will be more carbon dioxide created to make the balloon bigger.
Variables:
Independent Variable: Yeast
Dependant Variable: Carbon Dioxide
Controlled Variables: urine and Sugar
Materials:
-Yeast
-Sugar
-125ml Erlenmeyer Flask
-4” balloon (Deflated)
-Luke warm water
-Masking Tape
Method:
1. valuate out 5g yeast, 20g of sugar, ad 120ml of luke warm water (Less than 100 degrees F)
2. push through yeast, sugar and water in a 125ml Erlenmeyer Flask.
3.Quickly profane the balloon over the opening of the Erlenmeyer Flask.
4.Seal where the balloon and flask meet with tape.
5.Shake and allow for the reaction to occur.
6.Measure the diam of the balloon at 2 minute intervals then succuss the flask again to further mix the contents.
Results:
SUGARYEAST
5g Yeast - 20g Sugar4.5 cm5g Yeast - 20g Sugar4.5 cm
5g Yeast - 25g Sugar9 cm10g Yeast - 20g Sugar13 cm
5g Yeast - 30g Sugar9 cm15g Yeast - 20g Sugar17 cm...If you want to get a full essay, order it on our website: Orderessay
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