Fermentation Lab

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Fermentation Lab
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Hypothesis Which test tube will pop
first?Purpose To identify a common type of
anaerobic respiration.
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Anaerobic Respiration
Both test tubes contain yeast Test tube A has
grape juice in it.(sugar source) Test Tube B
has water in it. Both Test tubes are corked and
you wait 45 minutes.
Grape Juice
Water
Yeast in both
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Predict what will happen?
What will happen?
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Observation and Data

• You noticed
• Bubbles produced.
• A noticeable odor.
• Test Tube A popped.

Grape Juice
Water
Yeast in both
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Questions Why?

• What anaerobic reaction took place?
• Draw the reaction.
• Why is this reaction anaerobic?
• What were the bubbles?
• Why didnt the reaction take place in both test
  tubes?
• (All answers must be in complete sentences)

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Alcoholic Fermentation