The diagram below shows that C₄ plants photosynthesize more efficiently than C₃ plants at high temperatures.This is because
A)C₄ plants make use of chemosynthesis as well as photosynthesis.
B)C₄ plants are able to minimize water loss through the stomates more efficiently than C₃ plants.
C)C₄ plants make use of the Calvin cycle to photosynthesize over a wider range of hours,while C₃ plants do not.
D)C₄ plants have larger chloroplasts than C₃ plants.

Question

The diagram below shows that C₄ plants photosynthesize more efficiently than C₃ plants at high temperatures.This is because 
A)C₄ plants make use of chemosynthesis as well as photosynthesis. 
B)C₄ plants are able to minimize water loss through the stomates more efficiently than C₃ plants. 
C)C₄ plants make use of the Calvin cycle to photosynthesize over a wider range of hours,while C₃ plants do not. 
D)C₄ plants have larger chloroplasts than C₃ plants.

Quizplus · Accepted Answer

C₄ plants have a unique anatomy that allows them to conserve water by reducing the amount of time their stomates (small pores on leaves) are open, while still being able to perform photosynthesis. In contrast, C₃ plants cannot minimize water loss as efficiently, especially at high temperatures, which can lead to decreased photosynthetic efficiency.

The Diagram Below Shows That C₄ Plants Photosynthesize More Efficiently