5.2 understand the effects on crop yield of increased carbon dioxide and increased temperature in glasshouses
Relates to:
Rate of photosynthesis: CO2 + H2O ----------> C6H12O6 + O2
Increase in carbon dioxide means that the rate of photosynthesis will increase, which results in an increase in crop yield up to a point where it reaches the optimum point of the rate of photosynthesis
The results of an increase of temperature is similar except that once the rate of photosynthesis reaches its optimum temperature the enzymes will denature, decreasing the rate of photosynthesis and therefore decreasing the total crop yield.
Increasing temperature in a greenhouse has other effects such as avoiding frost damage and keeping a constant temperature. Both of these also increase total crop yield.
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