Traditional” AP Lab 5 Cellular Respiration.

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Presentation transcript:

Traditional” AP Lab 5 Cellular Respiration

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)

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

The Respirometers Experiment Control

Equilibrating the Respirometers Can you read the Pipette?

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

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

The Data: Does it support the hypothesis?