OBJECTIVE FORESTRY

FORESTRY

PLANT AND WOOD ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement about Lenticels is incorrect?
A
occur in most woody trees
B
permit exchange of gases between atmosphere and and internal tissue
C
loosely arranged parenchyma cells produced from phellogen ruptures the epidermis forming lenticels
D
opening and closing of the lenticels are regulated by some specialised cells
Explanation: 

Detailed explanation-1: -Lenticels do not have any specialized cells but each stoma has specialized cells called guard cells to open and close stomata.

Detailed explanation-2: -Lenticel functions as a pore. It participates in the direct exchange of gasses between the internal tissues and atmosphere through the bark, which is or else impermeable to gases.

Detailed explanation-3: -Lenticels help in the exchange of gases between the atmosphere and the internal tissue of the stem. They remain open always. Stomata is present on the leaves. They control exchanges of gases between the atmosphere and internal tissue.

There is 1 question to complete.