... they will shatter leaving broken glass. Procedure I need to make the yeast solution first of all so I will mix 30g of yeast and 150ml of water. I will use 10ml of this stock solution. It must contain sugar for respiration to occur as sugar gets converted into energy by the process of respiration, so I will measure out 0.5g of sugar. I will fill the beaker with water at the temperature 10'C, I will need to use a thermometer to make sure this is precise. Then I will need to fill the burette with water and place the end in the bowl of water so no water will escape, I will then need to attach the end of the rubber tubing to the burette. I will then measure out 10ml of my yeast solution and pour it into the test tube. I will then place the bung at the top ...

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