5.2 Crop yield

• The rate of photosynthesis is the combination of CO2 and water with the presence of light, this is an enzyme reaction
• This results in the production of glucose and oxygen.
• The glucose is then turned into starch.
• CO2 is the substrate, the rate of photosynthesis will increase as the concentration of CO2 increases
• As you increase the temperature, we get an increase in the rate of reaction and the yield increases, but then we hit the peak which corresponds to the temperature (optimum temperature) 
• Increasing temperature in a greenhouse also has other effects like avoiding frost damage, and providing constant temperatures which contribute to the increase in yield