Cell respiration refers to the process of converting the chemical energy of organic molecules into
a form immediately usable by organisms. Glucose may be oxidized completely if sufficient
oxygen is available according to the following equation:
C6H12O6 + 6O2(g) → 6 H2O + 6 CO2(g) + energy
All organisms, including plants and animals, oxidize glucose for energy. Often, this energy is
used to convert ADP and phosphate into ATP. Peas undergo cell respiration during germination.
Do peas undergo cell respiration before germination? Using your collected data, you will be able
to answer the question regarding respiration and non-germinating peas.
In this experiment, you will
Measure gas production.
Study the effect of temperature on cell respiration.
Determine whether germinating peas and non-germinating peas respire.
Compare the rates of cell respiration in germinating and non-germinating peas.
Sensors and Equipment
This experiment requires each of the following Vernier sensors and equipment (unless otherwise noted):
Step-by-step instructions for computer-based data collection
List of materials and equipment
Note: The experiment preview of the computer edition does not include essential teacher information, safety tips, or sample data. Instructions for Logger Pro and other software (such as LabQuest App or TI handheld software, where available) are on the CD that accompanies the book. We strongly recommend that you purchase the book before performing experiments.