Cellular Respiration Sita M Damaraju (Fellow)

6 H 12 O 6 + 6O 2 → 6CO 2 + 6H 2 O + ATP Glucose + Oxygen → Carbon dioxide + Water + Energy (ATP)

Vernier Lab Part II Determine whether germinated or non- germinated peas respire. Use a CO 2 gas sensor to measure concentrations of carbon dioxide. Study the effect of temperature on cell respiration. Compare the rates of cell respirations in germinated peas and non-germinated peas.

Materials CO 2 sensor 250mL respiration chamber Computer Logger pro software Lab pro (sensor-computer interface) 25 germinating peas 25 non-germinating peas Thermometer

Set up CO 2 sensor Lab pro Germinated Peas Non germinated peas

Results

Extensions Measure O 2 concentration using germinated and non germinating peas at different temperatures Measure pressure changes during respiration of germinating and non-germinating peas at different temperatures (AP Biology lab) Simultaneously measure O 2 and CO 2 concentrations at different temperatures for germinating and non-germinating peas.

Sensors CO 2 sensor O 2 sensor Gas pressure sensors