Use the data you collected from the experiment you performed to answer the following questions:

1. How was your experiment controlled?

2. What was a tight seal needed around each connection point in the experimental device?

3. Draw a picture of your sprouting bean seedling, label its primary parts and show where the highest respiration rates were and explain why.

4. What two structures or factors did you compare in your investigation?

5. What was the difference in respiration rates between the two structures you compared and what about their respective developmental patterns would explain this difference?

6. If the respiration rate increases, what happens to the gas pressure? Explain your answer.

7. Begin with a dormant seed and describe the life cycle of the plant, explaining the purpose of each stage for the development and success of the plant.

8. Does the germinating seed contain a zygote or an embryo?

9. Which stage of animal development is the seed analogous to?

10. What is morphogenesis, and how is it different in plants and animals?

11. Where was(were) the meristematic tissue(s) of the developing plant you tested?

12. What role does meristematic tissue play in the plant's growth and development (i.e. why would the respiration rates be highest there even when the plant is mature)?
 

Extra Credit:

Carbon dioxide probes record the concentration of CO₂ molecules in a closed system instead of the pressure of the gas.  If you had used this kind of sensor instead of a gas pressure probe in the experiment you just performed, what kinds of data would you have expected to collect? Graph these hypothetical results and explain what these results mean and why you would have gotten them.