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AP Biology Labs
 Metabolism
This laboratory exercise is a fun follow up to the metabolism unit. Students get to investigate fermentation by making root beer (or other flavored sodas). You can buy the champagne yeast and flavoring from online vendors, like Karp's Homebrew Shop. I have found that the root beer actually works the best and is appreciated by more students.

You need .25 grams yeast and 4 mL per pair of students. You will need to collect 2 liter bottles for your mixing bottles and purchase 0.5 liter water bottles for the brewing water and for brewing the root beer in. I warm the bottles up just by putting them in buckets of hot water a period before class.

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