2. What are the main gas
exchange organs of the
plants? How is the process
accomplished?

Gap-fill exercise

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In the covering of leaves and of the
structure of the stem
exchange is made through cuticle
and pores of epidermis. In the
covering the secondary structure of
stem of woody plants exchange
is made through lenticels of the
periderm ( breaches of the cork).
gas exchange in plants
accomplished by simple diffusion.