Question Detail
Question
Among light, oxygen and temperature, which one is the limiting factor in the rate of photosynthesis
Correct Answer
Option D is the correct answer.
Detailed Explanation
A limiting factor is a variable that can limit the rate of a process when in short supply. Light is necessary for the light-dependent reactions. Temperature affects the enzyme-driven Calvin cycle. Oxygen can be a limiting factor in a different way; high concentrations can lead to photorespiration, which reduces the efficiency of photosynthesis. Therefore, all three can be limiting factors under different conditions.
Hint
Can each of these factors, if not optimal, slow down or stop photosynthesis?