In order to conserve H₂O, land plants will close stomata to minimize transpiration, but closing stomata lowers CO₂ concentration in the leaf. Drought thus _____ because _____.

Question

Quizplus · Accepted Answer

When plants close stomata to minimize transpiration during drought, the concentration of CO₂O in the leaf decreases. CO₂O is necessary in the process of photosynthesis, and when it is limited, the rate of photosynthesis decreases. The decrease in CO2 availability also leads to an increase in photorespiration, which further reduces the rate of photosynthesis. Thus, drought lowers photosynthesis and increases photorespiration.

In Order to Conserve H2O, Land Plants Will Close Stomata

In Order to Conserve H₂O, Land Plants Will Close Stomata