Question

Husk of coconut is made of
A) Parenchyma
B) Sclerenchyma
C) Collenchyma
D) Chlorenchyma

Answer 1

In general, they are found in the leaf veins, rough seed coverings and can also be located around the vascular pack. They make the plant rigid and strong as well.

Complete answer:
First we should know about permanent tissue to answer this question. In a plant, the permanent tissues are those tissues containing non-dividing cells. In order to fulfil different roles in the plants, the cells are often modified. The cells can be isolated from the meristematic tissue of the permanent tissue. Only completely distinguished are the permanent tissue cells. The cells are large and have a certain form and scale.
Now, let us find the solution from the options-
- In organs, parenchyma forms the main component and is tightly packed or has intercellular space and resides with the potential for division. They execute photosynthesis, transportation, and secretion roles. Thus, option A is not the correct option
- Sclerenchyma is long, slender cells with some or several pits with dense and lignified cell walls. These are typically found mostly in fruit walls of nuts, the coconut husk, the legume seed coat, etc.
- Collenchyma in dicot plants is located in the hypodermis which provides the plant with mechanical assistance. Thus, option C is not the correct option.
- The altered parenchymatous tissue that assists in photosynthesis is chlorenchyma. Thus, option D is not the correct option

Thus, the correct option is option (B) Sclerenchyma.

Note: Sclerenchyma cells are dead cells of the tissue. Owing to the accumulation of lignin, the cell wall is very strong. The cells in this tissue may have multiple shapes and sizes. The major purpose of the sclerenchymatous tissue is to provide the plant body with rigidity and mechanical strength.