Question

what are the functions of stomata? state 3 points.

Answer 1

"Functions of Stomata:

• The main function of stomata is to open and close the pores in the leaves for an exchange of gases.
• It allows the plant to take in carbon dioxide and give out oxygen for photosynthesis.
• Based on the weather conditions, it closes or opens its pores to keep the moisture content developed.
• It helps to expel the excess water out from the leaves in the form of water vapour.

Stomata are tiny pores in the plant tissues mainly on the surface of leaves. It is also found in some stems."

Answer 2

Stomata is the tiny openings which are present on the leaves epedermis.

Explanation:

• Stomata has a major role in the process of photosynthesis and gaseous exchange.
• It can be seen when viewed under the light microscope.
• In certain plants they are present on the stems and other parts of the plants.
• The stomata control the transpiration rate by opening and closing.
• Minute pores called stoma surrounded by a pair of guard cells are stomata.
• They have open and close pores called guard cells these cells are tough and flexible.
• The shape of the guard cells will differ in monocots and dicots.
• They have certain mechanism with which it works.
• These guard cells are bean shaped and they contain chloroplasts.
• The stomata contains chlorophyll and can capture light energy.

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