Teacher manual for Advanced Environmental and Earth Sciences labs. Has both the printed version and a flash drive with teacher tips, a PDF of teacher version and editable Word student version.
Use a carbon dioxide sensor to compare the respiration of dormant bean sees with germinating bean seeds, and to observe the contribution of cellular respiration to the global carbon cycle.
Students explore the relationships between cellular respiration, photosynthesis, and the carbon cycle by:
Students use germinating bean seeds as a model to represent cellular respiration in a closed system, and conduct the following procedures:
Dissecting microscope or magnifying glass
Dry bean seeds - 22
Knife or scalpel
Parafilm® for Erlenmeyer flask
Sampling bottle or Erlenmeyer flask, 125-mL - 2
This experiment may require software and an interface for data collection.