Which of the following cells regulate the opening and closing of stomata?

Question

Quizplus · Accepted Answer

Stomata are regulated by guard cells, which control the opening and closing of the stomatal pore in response to various signals such as light, humidity, and carbon dioxide levels. Companion cells are involved in the transport of nutrients in phloem, trichomes are hair-like structures on the surface of leaves, vessel elements and tracheids are involved in water transport in xylem.

Which of the Following Cells Regulate the Opening and Closing