Question

It is the dead area in the bark or cortex of a stem with raised
margins=........​

Answer 1

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In woody plants, secondary tissues constitute the bulk of the plant. Lenticels are aerating pores in the bark of plants. Its margin is raised and is formed by surrounding cork cells.

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Answer 2

Answer: The correct answer is lenticels.

Explanation: Lenticels are the dead cells that are present on the outer side of the bark and still; the inner side of the bark is able to exchange the gas and this is also because lenticels only because they have intercellular spaces in between them which permit gaseous exchange between the environment and internal tissue spaces of organs of stems and some fruits as they permit the entry of oxygen and simultaneously they also give carbon dioxide as the output and also along with it it gives the water vapor for examples the apple fruits because they have 21 percent of the lenticels for the process of transpiration  In woody plants, secondary tissues constitute the bulk of the plant. Lenticels are aerating pores in the bark of plants. Its margin is raised and formed by surrounding cork cells. The lenticels are porous in nature and they are found in dicot roots bark of woody stems periderm and so on and also help the air to reach up to roots.

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