Guard cells do which of the following?

Question

Quizplus · Accepted Answer

Guard cells play a crucial role in regulating the opening and closing of stomata, which in turn helps balance the photosynthesis-transpiration compromise. By opening the stomata, they allow for gas exchange necessary for photosynthesis, but also allow for water vapor to escape through transpiration. By closing the stomata, they reduce water loss but also limit the intake of CO2 required for photosynthesis. Therefore, guard cells help balance the trade-off between water loss and CO2 uptake, which is essential for plant survival. The other options listed are incorrect.

Guard Cells Do Which of the Following