Yeast

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Ana Chavez
2nd Period

YEAST LAB REPORT
Respiration occurs to everything that is living, and it can happen during day and night. Most cells use aerobic cellular respiration, but some others are anaerobic. In anaerobic organisms do not use oxygen to break down glucose or have limited supplies. The energy released from glucose is converted into ATP to function and survive. The organelle, where aerobic respiration happens is the mitochondrion. Anaerobic respiration happens in the cytoplasm aerobic or anaerobic respiration is basically fermentation. If we put yeast and sugar in the test tube with warm water then the ballon's circumference will increase.

Materials:
* dry rapid rise yeast
* test tube
* tape measure
* goggles
* sugar
* warm water
* apron
* clock stop watch
* electronic scale
* metric tape measure
* masking tape

In this laboratory experiment, the class' purpose was to fill a test tube with 4g of yeast and 8g of sugar. After that we would add to the test tube, 3/4 of warm water. After adding all the ingredients, we put a stretched ballon over the test tube, then we made sure the ballon is tight and add masking tape to it just to make sure. Shake the test tube to make the ingredients mix. Most important of all measure the diameter of the ballon every 2 minutes for a total of 20 minutes. Record the data in a chart.

At the end of the experiment, we made a conclusion that our hypothesis was correct. Because we said that, if we put yeast and sugar in a test tube with warm water, then the ballon's circumference will increase. And it turned out to be the same.
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