Question 40. Stomata is absent in roots and stems of woody plants then how gaseous exchange takes
- place in this part of plants?
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Answer:
by transpiration and also by lenticels formation in periderm.
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In the case of the stem, the air gets diffused in the stomata and passes through various parts of the cell for respiration. The carbon dioxide produced during this stage also diffuses through the stomata. In higher plants or woody plants, the gaseous exchange is carried out by lenticels
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