B12 supplement

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6 Terms

1
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Is yeast aerobic or anerobic?

yeast is anaerobic respiration which produces energy from from glucose without oxygen

2
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What does yeast respiration produce?

yeast respiration produces alcohol and carbon dioxide

3
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State 4 steps for yeast respiration

  1. Put yeast and glucose into a boiling tube/flask and put it in a water bath until it reaches a certain temperature for the experiment.

  2. Measure the carbon dioxide produced

  3. Repeat the test at different temperature

  4. calculate the rate of respiration, volume of Co2 produced/time.


4
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State the word equation for yeast respiration

Glucose —> ethanol + CO2

5
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State the symbol equation for yeast respiration

C6H12O6 —> 2C2H5OH + 2CO2

1 glucose —> 2 ethanol + 2 carbon dioxide

6
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How does yeast respiration contribute to bread making and alcohol brewing?

Yeast respiration produces Co2, making the bread rise as it is trapped.

Ethanol brews alcohol