1. Traditional” AP Lab 5
Cellular Respiration

2. Hypothesis
Temperature effects how an organism carries out cellular respiration. The rate of cellular respiration will change according to the temperature. The warm temperature peas will show a higher rate of cellular respiration than the peas in cold temperature. The warmer peas will use more oxygen. Thus, there will be a greater change volume of water in the pipette of the warm peas respirometer over a given time than the cold peas respirometer.
When you read this, you should be able to find the variable which is tested and
a statement of what is believed to happen (should relate to what you are trying to
find out) and a description of what is being measured that represents what you are
studying (like the water level in pipette is changing)

3. Making the (3) respirometers for a specific water temperature…

4. The Respirometers
Experiment
Control

5. Equilibrating the Respirometers
Can you read the
Pipette?

6. Respirometers must equilibrate in the water bath
Respirometers must equilibrate in the water bath. Experiment begins after equilibration (submerged respirometers)

7. Experimental Design and Materials
Beads Alone Respirometer –
Control: Should see no changes. Why?
*Ensures that the variable of the experiment is true cause of the change
Germinating Peas Respirometer-
Experimental setup – One that contains the variable
KOH – remove Carbon dioxide

9. The Data: Does it support the hypothesis?