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Cellular Respiration Lab

Cellular Respiration Lab. Problem: What are the products of cellular respiration and fermentation? Background: Hypothesis: . Procedure: Disolve 1 heaping teaspoon of sugar in 75 ml of warm water. Add 1 “ tasterspoon ” of yeast to a ziploc plastic bag.

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Cellular Respiration Lab

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  1. Cellular Respiration Lab Problem: What are the products of cellular respiration and fermentation? Background: Hypothesis:

  2. Procedure: • Disolve 1 heaping teaspoon of sugar in 75 ml of warm water. • Add 1 “tasterspoon” of yeast to a ziploc plastic bag. • Add the sugar solution to the bag and seal. • Mix the solution together. • Label the bag with your name. • Set bag in container and let set for an hour. • Observe results. • Return bag to container to set overnight days.

  3. Data Analysis: • What was the gas in the bag? • What would you expect to happen to the concentration of the sugar in the bag? Why? • What are the yeast cells using energy for? • If we can keep the bag sealed, and air-tight, so no oxygen gets in, what do you expect to happen? • What are the products of cellular respiration? • What is the purpose of cellular respiration?

  4. Period 7 • What was the gas in the bag? • What do the yeast use energy for? • What did the yeast smell like? • Why? • What do the yeast use sugar for? • Do you think there is more, less, or the same amount of sugar now in the bag?

  5. Conclusion:

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