In biology courses, students tend to learn about big-picture concepts that can be difficult to comprehend, such as cellular respiration, photosynthesis, and cellular metabolism. 

With the Go Direct CO₂ Gas Sensor (which measures gaseous carbon dioxide concentration levels, air temperature, and relative humidity) and the Go Direct O₂ Gas Sensor (which measures gaseous oxygen concentration levels and air temperature), students can go from reading about these concepts in a textbook to seeing them in action.

For example, students can use the Go Direct CO₂ Gas Sensor to observe carbon dioxide levels increasing during cellular respiration and decreasing during photosynthesis—and they can observe the opposite with the Go Direct O₂ Gas Sensor.

Put another way, these sensors can help make the abstract real. They also provide both K–12 and college educators with a flexible, affordable way to bring biology concepts to life for their students. 

Experiment ideas for the Go Direct CO₂ Gas Sensor include 

• Measure the change in gas concentration during cellular respiration.
• Measure the change in gas concentration during photosynthesis.
• Study the effect of temperature on cell respiration or metabolism of organisms.
• Investigate artificial selection in yeast by comparing respiration rates of different strains.

Experiment ideas for the Go Direct O₂ Gas Sensor include 

• Test catalase activity under various conditions.
• Measure oxygen consumption at rest and after exercise.
• Measure the change in gas produced during photosynthesis.
• Compare the rates of cell respiration in germinating and non-germinating peas.

Explore all the benefits of the Go Direct CO₂ Gas Sensor and Go Direct O₂ Gas Sensor!