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Goldfish Investigation The effect of temperature on the rate of cellular respiration.

Goldfish Investigation The effect of temperature on the rate of cellular respiration. Recall-How does bromothymol blue work again?. Why has the fish’s water turned yellow? Explain the gases involved. “Temperature and Cellular Respiration Lab” (Label a new piece of paper). PRELAB Questions:

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Goldfish Investigation The effect of temperature on the rate of cellular respiration.

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  1. Goldfish InvestigationThe effect of temperature on the rate of cellular respiration.

  2. Recall-How does bromothymol blue work again? • Why has the fish’s water turned yellow? • Explain the gases involved.

  3. “Temperature and Cellular Respiration Lab” (Label a new piece of paper) PRELAB Questions: • 1. The reactants of cellular respiration are _____________. The products of cellular respiration are _________________. • 2. Where in the cell does cellular respiration happen? • 3. Define homeostasis (new word). • Scientific Question: Will temperature effect the rate of cellular respiration in gold fish? • Hypothesis: (MAKE YOUR OWN… IF/THEN) • Materials: 1 fish, 1 beaker, bromothymol blue, water, stop watch • Variables and Procedures… Independent Variable: Dependent Variable: Control: Once your hypothesis and variables have been checked you are ready to begin the lab!

  4. “Temperature and Cellular Respiration Lab” Continued… 4. Variables & Procedures Variables: Independent Variable: I am testing how TEMPERATURE effects cellular respiration in fish. Dependent Variable: I am measuring the rate at which the fish breaths and how the color of the indicator changes. Constants: Procedures • There are 3 fish in 3 different temperatures. They are set up at different stations • Record how many times the fish breathes in one minute (by watching it open and close it’s mouth). Repeat 3 times (3 trials at each station). • At the end of the lab, make an observation about the color of the bromothymol blue indicator. • You will have 2 data tables!

  5. Temperature and Cellular Respiration 5. Data TableTry to creat your own. 3 fish… 3 temperatures…what can you come up with? Having problems creating a data table? Use one of these!

  6. Data Analysis and Conclusion Data Analysis- • Create a graph to represent your findings in the lab. Conclusion (the hard part…)- • Determine whether your hypothesis was right or wrong. You must back up your claims with data from your investigation. • Explain the full process of cellular respiration and how it was effected by the changing temperatures. Be sure to include how reactants and products of photosynthesis were effected in this investigation. • How are your findings in the lab relative to real world problems? • How was cellular respiration effected by the temperature change?

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