Name: _____________________________________________ Date: _____________ Block: ___________
Cellular Respiration: Virtual Lab
Click the following link: http://www.phschool.com/science/biology_place/labbench/lab5/intro.html
www.phschool.com
go to “The Biology Place”
go to LabBench
go to “Lab 5: Cell Respiration”
Answer the following questions
1. Write the equation for cellular respiration:
2. What are the three ways in which you can measure the rate of cellular respiration?
3. Sketch a respirometer and label its important features.
4. As the organism inside the respirometer consumes oxygen, what happens to the water?
5. What happens to the CO2 that the organism produces?
Experiment Setup: View the Graphic and fill out the table below
Vial 1
Vial 2
Vial 3
Vial 4
Contents
Vial 5
Vial 6
Temperature
6. How do you ensure that each vial has an equal volume?
7. What is the purpose of the vial with only glass beads?
Analyzing Results
8. What is the equation to determine the rate of respiration?
9. What is X: ___________________ What is Y: ________________________
10. Read the respirometers and determine the rate of respiration. Show your calculations below the diagram.
Analysis – Self Quiz
11. Describe the relationship between temperature and consumption of oxygen.
12. Calculate the rate of oxygen consumption for germinating corn at 12OC. Show your work.
13. Based on the graph, would you conclude that non-germinating seeds respire? Justify your answer.
Extension (In your Research Journal): Transcribe the following data table into your lab manual and
answer the following questions based off your understanding of cellular respiration and the data given below.
A cricket was placed in a respirometer and data taken at three temperatures. The following table shows the
data collected.
Time (minutes)
0
5
10
15
20
10OC
0.0
0.25
0.5
0.7
0.9
Temperatures
18OC
0.0
0.6
0.9
1.2
1.6
25OC
0.0
0.9
1.4
1.8
2.4
a. Graph the data
Answer the following:
1. Determine the rate of respiration for each of the three temperatures. Show your work
2. Write a paragraph stating your conclusions based off your understanding of metabolism (cellular
respiration), oxygen consumption, and carbon dioxide release.