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Question
In older woody tissue, the gaseous exchange takes place through
In older woody tissue, the gaseous exchange takes place through
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Solution
The correct option is A Lenticel
In woody stems, the entire surface is covered by bark, which is impervious to gases or water. However, there are certain openings or pores in the layer of bark. These are called as the lenticels. They are visible slightly more raised than the general surface of the stem. At the base of the lenticels are loosely arranged cells, which allow the diffused gases to pass through them. So, in older woody tissue, the gaseous exchange takes place through lenticle. Thus, option A is correct.
In woody stems, the entire surface is covered by bark, which is impervious to gases or water. However, there are certain openings or pores in the layer of bark. These are called as the lenticels. They are visible slightly more raised than the general surface of the stem. At the base of the lenticels are loosely arranged cells, which allow the diffused gases to pass through them. So, in older woody tissue, the gaseous exchange takes place through lenticle. Thus, option A is correct.
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