The diagram below shows three plants with identical leaf surface areas:Assuming all other conditions were identical for all three plants, which of the plants would like to photosynthesize slowest and fastest.

Z is slowest as it gets green light in which photosynthesis is less. Y is fastest as the temperature is optimum or suboptimum and red light is provided in which the photosynthesis is more to which evidence is obtained from Engelmann's experiments.