Question

The graph below represents the effect of temperature on the rate of photosynthesis.
        

1. On the diagram, label the axes. (1mk)
2. Comment on the general trend of the graph. (2mks)
3. List two other factors that may affect the shape of the graph.

Answer 1

1.  
   • x-temperature
   • y-rate of photosynthesis
2. rate of photosynthesis increases as temperature increases ;upto the optimum temperature; and starts to fall; due to denaturation of enzymes by the high temperature 
3.  
   • Light intensity;
   • conc.of carbon(iv) oxide;
   • amount of chlorophyll in the leaves