explain gaseous exchange in stem (on basic of class 10)
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In roots the exchange of gases takes place by diffusion from membrane of root hairs. When the stem and roots mature, numerous pores are found on the surface of the roots and stem. These pores are called lenticels. These lenticels help the plants in exchange of gases.
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In roots the exchange of gases takes place by diffusion from membrane of root hairs. When the stem and roots mature, numerous pores are found on the surface of the roots and stem. These pores are called lenticels. These lenticels help the plants in exchange of gases
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