Question

Match the following layers of the cell wall with their components:

Column I (Layer) Column II (Component)

i). Cellulose a. Middle lamella

ii). Pectin b. Secondary cell wall

iii). Lignin c. Primary cell wall

• A. i).$\Rightarrow$ a., ii). $\Rightarrow$ c., iii). $\Rightarrow$ b
• B. i).$\Rightarrow$ c., ii). $\Rightarrow$ a., iii). $\Rightarrow$ b
• C. i).$\Rightarrow$ c., ii). $\Rightarrow$ b., iii). $\Rightarrow$ a
• D. i).$\Rightarrow$ b., ii). $\Rightarrow$ c., iii). $\Rightarrow$ a

Answer 1

The correct option is B

i).$\Rightarrow$ c., ii). $\Rightarrow$ a., iii). $\Rightarrow$ b

The layers of the cell wall are made of different components. Each layer is not particularly with one sort of compound, but in major and minor mixtures, according to which the following could be observed:

Middle lamella - Pectin
Secondary cell wall - Lignin
Primary cell wall - Cellulose