Question

Which of the following act as defence mechanisms in plants?

• A. Bark
• B. Cuticles
• C. Cell wall
• D. Callose

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A

Bark

B

Cuticles

C

Cell wall

D

Callose

Plants have a strong defence mechanism to prevent germs from entering them.

$\begin{array}{cc}\text{Bark}& \text{Acts as a strong coat from pathogens. Consists of dead cells to stop germs in trees.}\\ \text{Cuticles}& \text{External epidermis layer that defends the attack from microorganisms.}\\ \text{Cell wall}& \text{Consists of a resistant coating with chemicals such as lignin, cutin, suberin, etc.}\\ \text{Callose}& \text{Prevents the entry of germs that have managed to cross the cell wall.}\end{array}$