Biology
Anaerobic respiration in yeast
Investigate the role of carbon dioxide in yeast.
Mission
Investigate the role of carbon dioxide in yeast
Curriculum Alignment
| Standard | Syllabus code | Topic | Coverage | Grades | |
|---|---|---|---|---|---|
| NGSS | HS-LS1-7 | Cellular respiration releases energy from food molecules | Partial | 9–12 | |
| British / IGCSE | CAIE 0610 12.1.2 / Edexcel 4BI1 2.39 | Investigate respiration in yeast | Partial | 9–10 | |
| IB | 2.8 Cell respiration | Anaerobic cell respiration in yeast produces ethanol and CO2 | Full | 11–12 | |
| CBSE | Class 11 Ch.14 Respiration in Plants | Fermentation (anaerobic respiration) | Partial | 11–11 | |
| AERO / AP | AP Bio 3.5 Cellular Respiration; AERO Yr9 AC9S9U03 | Fermentation as an anaerobic alternative to aerobic respiration | Partial | 9–12 |
Variables
What you change
- Sugar
What you measure
- Concentration Of CO2
What you keep constant
- Temperature
- Humidity
What You'll Need
- Breadboard 400 Tie Point
- Arduino Uno
- I2C LCD
- Air Quality Sensor MQ135
Estimated Time
Virtual mode 16 minTest mode 23 minExercise mode 21 min
Mind-Blowing Fact
It's alive!
Yeast is a living organism that requires water to carry out its life processes. When you add water to yeast, you are providing it with the necessary hydration for survival. As the yeast begins to consume food (glucose from flour), it produces waste in the form of CO2, which is visible as bubbles.
How You Can Run It
Virtual modeTest modeExercise modeView-only modeAccessibility modeTobii eye trackingVoice commandsAmericanBritishIB