Plant Physiology: Photosynthesis Rate
Investigating the effect of light intensity on the rate of oxygen production in aquatic plants.
50cm40cm30cm20cm10cm0cm
Lab Controls Rate: 0 bpm
Lamp Distance
50 cm
Sodium Bicarbonate (CO₂)
0.5 %
BUBBLE COUNTER
0
STOPWATCH
00:00
| Distance (cm) | Light Intensity (1/d²) | Rate (Bubbles/min) |
|---|---|---|
| No readings recorded yet. | ||
Key Concepts
- Chemical Equation: 6CO₂ + 6H₂O + Light → C₆H₁₂O₆ + 6O₂
- Inverse Square Law: Light intensity is inversely proportional to the square of the distance (I ∝ 1/d²).
- Limiting Factors: Photosynthesis increases with light intensity up to a point, after which other factors (like CO₂ or temperature) become limiting.