OPENING  PRESENT IN THE OLD STEMS OF PLANTS FOR EXCHANGE OF GASES

Asked by jayarajb | 6th Dec, 2015, 03:45: PM

Expert Answer:

Respiration in older stems occurs through small pores called lenticels. They are the dead cells present on the bark of woody plants.
which are present as small pores on the bark of woody plants or old roots. These enable oxygen to reach the intercellular spaces of the interior tissues and carbon dioxide to be released to the atmosphere by the process of diffusion. - See more at: http://www.funscience.in/study-zone/Biology/Respiration/RespirationInPlants.php#sthash.JZ6jyiWc.dpuf

Answered by Sivanand Patnaik | 7th Dec, 2015, 08:00: AM