Why Is Photorespiration More Likely to Occur During Warm Weather

Multiple Choice

Why is photorespiration more likely to occur during warm weather?

A) Plants require warm weather (at least 23°C) to drive photosynthesis.
B) Plants are more likely to close their stomata in the nighttime than during the day.
C) Plants are more likely to dehydrate in warm weather, forcing them to close the stomata to conserve water, thus preventing CO₂from entering the leaf.
D) The rubisco enzyme is very temperature sensitive and becomes less efficient in warmer temperatures, allowing it to fix O₂instead of CO₂.
E) Plants use up the water in their central vacuoles in warm weather, inhibiting the water-requiring light reactions; this in turn alters the activity of rubisco.