Question

How does a woody stem transpire?

Answer 1

1. The stems of woody plants have lenticels, which are specialized openings for gaseous exchange.
2. It is a porous tissue that possesses the cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems and roots of dicotyledonous flowering plants.
3. Lenticels are minute openings in the bark of branches and twigs.
4. Evaporation of water from the lenticels of the plants is known as lenticular transpiration.
5. Lenticels are not present in all the plants.
6. A minimal amount of water is lost through lenticels.