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Question
Respiratory gas exchange in leaves takes place by means of
Respiratory gas exchange in leaves takes place by means of
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Solution
The correct option is D Diffusion
In leaves the exchange of respiratory gases takes place through very small pores called stomata (singular stoma). The stomata are present in large number on the lower surface of leaves of the plant. Each stoma has a pore at its centre which is surrounded and controlled by two kidney-shaped cells called guard cells. When the stoma opens the exchange of gases takes place between the atmosphere and interior of the leaf by the process of diffusion.
So, the correct answer is option C.
In leaves the exchange of respiratory gases takes place through very small pores called stomata (singular stoma). The stomata are present in large number on the lower surface of leaves of the plant. Each stoma has a pore at its centre which is surrounded and controlled by two kidney-shaped cells called guard cells. When the stoma opens the exchange of gases takes place between the atmosphere and interior of the leaf by the process of diffusion.
So, the correct answer is option C.
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