10. Write important functions of-a) stomata and guard cells ?
Answers
Answer:
They are pores surrounded by specialized parenchymatic cells, called guard cells. Stomata have two main functions, namely they allow for gas exchange acting as an entryway for carbon dioxide (CO2) and releasing the Oxygen (O2) that we breath. The other main function is regulating water movement through transpiration.
Explanation:
Functions of the stomata
They allow the exchange of gases (CO2 and O2) with the atmosphere.
Evaporation of water from the leaf surface occurs through the stomata. Thus, the stomata help in the process of transpiration.
Based on the climatic conditions, it closes or opens its pores to maintain the moisture balance.
Allows the intake of carbon dioxide and to give out oxygen during the process of photosynthesis.
Stomata remain open during the day and closed at night. This closure at night prevents water from escaping through open pores