Biology 304
Cardiac Muscle Lab

Temperature Effects

Here are two series of temperature data. What are the Q₁₀ values between each pair? The chart speed was 0.1 cm/s.

    You must look at both of these images:

This is another set of data, with answers. These are not to be used in a report.

10 °C

 15 °C                Note that the expression 10/T₁-T₂ is the exponent to V₁/V₂, not just of V₁.

20 °C

25 °C

30 °C                  

35 °C

You actually don’t need the chart speed to calculate the Q₁₀s from any pair of tracings above. You do have to know that the chart speed was the same in all the trials.

· What does a Q₁₀ of 2 mean?

· What does a Q₁₀ of 0.5 mean?

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Thanks to all who contributed their data!

R.F. Lauff Department of Biology St. Francis Xavier University

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