Biology
CO2 In Photosynthesis
Investigate the role of light on CO₂ concentration.
Mission
Investigate the role of light on CO2 concentration.
Curriculum Alignment
| Standard | Syllabus code | Topic | Coverage | Grades | |
|---|---|---|---|---|---|
| NGSS | HS-LS1-5 | Photosynthesis transforms light energy into stored chemical energy | Full | 9–12 | |
| British / IGCSE | CAIE 0610 6.1.9 / Edexcel 4BI1 2.45B | Effect of light/dark on gas exchange (photosynthesis vs respiration) | Partial | 9–10 | |
| IB | 2.8 Cell respiration / 2.9 Photosynthesis | Gas exchange linking photosynthesis and cell respiration | Partial | 11–12 | |
| CBSE | Class 11 Ch.13 Photosynthesis in Higher Plants / Ch.14 Respiration in Plants | Factors affecting photosynthesis; plant respiration | Partial | 11–11 | |
| AERO / AP | AP Bio 3.4 Photosynthesis + 3.5 Cellular Respiration; AERO Yr9 AC9S9U03 | Photosynthesis/respiration as gas-exchange/energy processes | Partial | 9–12 |
Variables
What you change
- Light Intensity
What you measure
- Concentration Of CO2
What you keep constant
- Temperature
- Surface Area Of Leaves
- Leaves From Same Plant
Equations
6CO_2 + 12H_2 O + light → C_6 H_12 O_6 + 6O_2 + 6H_2 O
C_6 H_12 O_6 + 6O_2 → 6CO_2 + 6H_2 O
What You'll Need
- Breadboard 400 Tie Point
- Arduino Uno
- I2C LCD
- Air Quality Sensor MQ135
Estimated Time
Virtual mode 16 minTest mode 24 minExercise mode 22 min
Mind-Blowing Fact
Bird Sensors!
The earliest air quality detector! In the 1800's Canaries played an important part of mining safety and retired from mining in the mid-1980s. In coal mines, they provided advanced warning of toxic gasses by detecting high concentrations of carbon dioxide, carbon monoxide, and methane - these living and breathing sensors saved many a life.
How You Can Run It
Virtual modeTest modeExercise modeView-only modeAccessibility modeTobii eye trackingVoice commandsArduino integrationAmericanBritishIB