How does pH affect photosynthesis?

1 Answer
May 6, 2014

If the pH is too high or too low, the rate of photosynthesis will decrease. If the pH is just right, the rate will increase to the best possible point.


Photosynthesis is the process by which plants create their food. It involves the operation of enzymes in the plant cells , and they work best at certain pH levels.

There is a "best" pH for the operation of the enzymes in each plant. At too high or too low pH levels, the enzymes in the plant can denature, stop working, or slow down. They can no longer carry out photosynthesis in the cell to their full potential.

Thus, as the plant's pH drifts away from the best pH, the rate of photosynthesis will decrease.