Cellular Respiration with LabQuest

O'Bryant - January 28, 2021

All experimental data can be found on the Hinton Google Drive here

Experiment 1:

Question:  How does the length of germination time effect the rate of CO2 production in Alaska peas?

Independent Variable:  Germination Time (Un-germinated, 24 Hours, 48 Hours)

Dependent Variable:  CO2 Production

Experiment 2:

Question:  How does rate of CO2 production compare between Soy Beans, Mung Beans, and Alaska peas?

Independent Variable:  Type of pea/bean (Soy Beans, Mung Beans, Alaska Peas)

Dependent Variable:  CO2 Production

Experiment 3:

Question:  How does rate of CO2 production compare between equivalent masses of Crickets and Alaska Peas?

Independent Variable:  Organism (Crickets, Alaska Peas)

Dependent Variable:  CO2 Production

Line of Best Fit and Calculating the Respiration Rates

In order to determine the respiration rate for each of the variables tested above, we must calculate the line of best fit for each dataset. 

Recall, a linear equation has the form Y = mx + b  

Y= CO2 with units of ppm (parts per million)

m = Slope or Respiration Rate with units of ppm / second

x = time with units of seconds

b = Y-intercept (CO2) with units of ppm

Using Excel or Google Sheets, we can calculate our line of best fit and the respiration rate, m, with the data:

We can then graph the data to visualize the rates of respiration for each sample:

Kennedy & BLA-Banerjee - February 11, 2021

Lab3_Cell_Resp_data_021121.csv

BLA-Via - February 25, 2021

BLA-Lab Session-02-25-2021.csv