how do plants respire . stae the role of vorious plants parts in this process
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Answer:
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Answer:
Plants respire with the help of stomata (found in leaves) and lenticels (found in stems) which carry out the function of the gaseous exchange. Root hair present in the roots also help the plants to respire through diffusion.
The role of various plant parts in the process of respiration is as follows:
i) Respiration in leaves:
Leaves consist of tiny pores known as stomata. Gaseous exchange occurs through diffusion via stomata. Guard cells regulate each of the stomata. The exchange of gases occurs with the closing and opening of the stoma between the inferior of leaves and the atmosphere.
ii) Respiration in stems:
Stems of trees have pores which are known as lenticels. Lenticels allow fresh air, which is rich in carbon dioxide, to reach the inner tissues and oxygen comes out.
iii) Respiration in roots:
Roots, the underground part of the plants, absorb air from the air gaps or spaces found between the soil particles. Hence, absorbed oxygen through roots is utilized to liberate the energy which is used to transport salts and minerals from the soil.
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