Question

what is the importance of lenticels in plants

Answer 1

Answer:

Lenticels permit the exchange of gases between the environment and the internal tissue spaces of the organs (stems and some fruits) (Fig. 6.2). They permit the entrance of oxygen and simultaneously the output of carbon dioxide and water vapor.

Answer 2

Answer:

What is a Lenticels?

Ans:one of many raised pores in the stem of a woody plant that allows gas exchange between the atmosphere and the internal tissues.

Explanation:

A lenticel is a porous tissue consisting of cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems and roots of dicotyledonous flowering plants. It functions as a pore, providing a pathway for the direct exchange of gases between the internal tissues and atmosphere through the bark, which is otherwise impermeable to gases. The name lenticel, pronounced with an , derives from its lenticular (lens-like) shape.The shape of lenticels is one of the characteristics used for tree identification.

Importance of lenticels:

• Lenticels are large sized aerating pores present in the cork tissue for gaseous exchange. They occur in almost all types of phellem containing organs including stem, root, potato tuber etc. They are slightly raised spots on the surface of stem. They help in exchange of gases.
• They permit the entrance of oxygen and simultaneously the output of carbon dioxide and water vapor. In apple fruit, lenticels account for up to 21% of the transpiration.
• A lenticel is a porous tissue which possesses cells with large intercellular spaces in the periderm of the secondary organs and the bark of woody stems. It functions as a pore and participates in the direct exchange of gasses between the internal tissues and atmosphere through the bark, which is otherwise impermeable to gasses.