AP BIOLOGY

PLANTS

PLANT TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
It is difficult to pull out the husk of coconut because
A
sclerenchyma cells are closely packed
B
collenchyma cells have thickened corners
C
xylem gives mechanical strength
D
epidermis has a thick cuticle
Explanation: 

Detailed explanation-1: -The husk of a coconut is made of sclerenchymatous tissue. They are lignified and make it difficult to pull. Sclerenchyma gives rigidity and stiffness to the plant and also due to the presence of lignin on the walls of the cells we find it tough to pull the husk out.

Detailed explanation-2: -The Sclerenchymatous tissue, which is a type of permanent tissue makes up the husk of the coconut. These tissues cause the plant to become stiff and hard. The cells of this tissue are dead and their cell walls are thickened because of the presence of lignin.

Detailed explanation-3: -Cells of sclerenchyma are thick walled. They are tightly packed without any intercellular spaces.

Detailed explanation-4: -The husk of coconut is made up of Sclerenchyma tissues. It is a simple permanent tissue. Cells are long with tapering ends and have a thick cell wall made of lignin. These cells are generally dead and do not contain protoplasm.

Detailed explanation-5: -We have seen the husk of a coconut. It is made of sclerenchymatous tissue. The cells of this tissue are dead. They are long and narrow as the walls are thickened due to lignin.

There is 1 question to complete.