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D3.1.12—Dispersal and germination of seeds

Experiments

Here are experiments our science specialists have selected to support this IB* topic.

Cellular Respiration

Experiment #9 from Investigating Biology through Inquiry

In this Preliminary Activity, you will use a CO2 Gas Sensor to determine the respiration rate of peas. After completing the Preliminary Activity, you will first use reference sources to find out more about peas, seeds, germination, and cell respiration before you choose and investigate a researchable question dealing with the cell respiration. Some topics to consider in your reference search are:

  • peas
  • seeds
  • germination
  • cell respiration
  • carbohydrates
  • glucose
  • dormant

Cell Respiration (CO2)

Experiment #11B from Biology with Vernier

In this experiment, you will

  • Use a CO2 Gas Sensor to measure concentrations of carbon dioxide.
  • Study the effect of temperature on cell respiration.
  • Determine whether germinated and non-germinated peas respire.
  • Compare the rates of cell respiration in germinated and non- germinated peas.

Educational Standard
International Baccalaureate (IB) 2025
Subject
Biology
Theme
D Continuity and change
Level of organization
3 Organisms
Topic
D3.1 Reproduction
Section
Standard level and higher level

* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.

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