Question

Distinguish between the following:
Stomata and lenticels

Answer 1

	Stomata		Lenticels
1.	There are two guard cells in the shape of beans surrounding these small openings. They can be opened and closed.	1.	There are no guard cells surrounding these special openings. They remain open all the time
2.	They are mostly found on the abaxial surface of leaves.	2.	These are found on the surface of older woody stems.
3.	These are responsible for the diffusion of gases during photosynthesis and respiration. They also help in transpiration.	3.	These are mainly responsible for diffusion of gases during respiration. They also help in transpiration.