Question

Q. Name the areas in a woody stem through which respiratory exchange of gases takes place.

Answer 1

Lenticels are a tissue which consists of large intercellular spaces in the periderm layer of the secondarily thickened organs and bark of the woody stems.

This tissue is porous and functions as a pore which provides a direct pathway for direct exchange of gases between the atmosphere and internal tissues.

Answer 2

Lenticels are a tissue which consists of large intercellular spaces in the periderm layer of the secondarily thickened organs and bark of the woody stems.