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Factors effecting the rate of photosynthesis

This version was saved 14 years, 6 months ago View current version     Page history
Saved by Jon Butler
on November 6, 2009 at 3:06:03 pm
 

 

These are the factors.

 

 

Light

 

At first as light intensity is increased, the rate of photosynthesis is increased but then it plateaus because of limiting factors.  Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis.

 

CO2

 

rate of photosynthesis plotted against carbon dioxide concentration. the rate begins to slow as the carbon dioxide concentration continues to increase

 

Temperature

 

Water

 

Humidity 

Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesise if there is insufficient carbon dioxide.

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