Question

what are the 3 functions of stomata?why most of the stomata are on the bottom of the leaf​

Answer 1

• As we know that stomata help in gaseous exchange.
• Stomata play important role in the transpiration process.
• It helps in balancing the moisture content. it allows the oxygen to be evaporated and carbon dioxide to be taken in.

• For the prevention of excessive loss of water, most of the stomata are found on the bottom of the leaf​.

Answer 2

Small openings on the lower surface of leaves are called stomata.

Explanation:

Stomata are tiny pores located on the lower surface of leaves. Its location is as such that it is hidden from direct sun to reduce transpiration of water.

Functions:

1. It helps in exchange of gases like oxygen and carbon dioxide in atmosphere.
2. It consists of guard cells which helps in regulating exit and entry of water. This helps in maintaining moisture in plants depending climatic conditions.
3. It opens only during the day for helping in photosynthesis.
4. Water loss from these pores creates an upward pull which helps in absorption of water from roots.