B1.4.3-4 - Factors Affecting Photosynthesis & Interactions Flashcards
1
Q
What are the three limiting factors?
A
Light intensity, carbon dioxide, temperature
2
Q
How does light intensity affect the rate of photosynthesis?
A
The higher the intensity, the faster the rate
After it reaches a maximum point it’ll stop increasing and plateaus
3
Q
How does carbon dioxide affect the rate of photosynthesis?
A
The greater the concentration, the faster the rate
Continues until maximum reached, then plateaus
4
Q
How does temperature affect the rate of photosynthesis?
A
The higher the temperature, the faster the rate
Of too high, enzymes denature and reaction will stop
5
Q
How to investigate the rate of photosynthesis?
A
Use pondweed and measure volume of oxygen given off per minute
