Question

Which of the following simple tissues are commonly found in the fruit walls of nuts and pulp of pear?

• A. Sclereids
• B. Fibres
• C. Parenchyma
• D. Collenchyma

Answer 1

The Correct Option is A

To solve this question, we need to identify the type of simple tissue commonly found in the fruit walls of nuts and the pulp of pear.

Simple tissues are groups of cells that are similar in origin, structure, and function. The main types of simple tissues are:

1. Parenchyma: These are living cells that have thin cell walls and are found in leaves, fruits, and flowers. They are involved in photosynthesis, storage, and tissue repair.
2. Collenchyma: These cells have unevenly thickened walls and provide support to growing parts of plants. They are typically found in regions of primary growth such as stems and leaves.
3. Sclerenchyma: These are dead cells with extremely thick cell walls that provide mechanical strength. They are composed of fibers and sclereids.

In the context of this question:

1. Sclereids: These are a type of sclerenchyma cell that are found in the hard parts of plants. They are short, irregularly shaped, and have very thick lignified walls. These are present in the fruit walls of nuts and the gritty texture of the pulp of a pear.
2. Fibres: These are also sclerenchyma cells but are elongated and provide support to the plant. They are not commonly found in pear pulp or nut walls.
3. Parenchyma: As mentioned, they are involved in storage and repair, and are not typically found in the specific parts mentioned here (fruit walls of nuts and pulp of pear) with a mechanical purpose.
4. Collenchyma: These provide flexibility and support to young plants but are not responsible for the characteristics described in the question.

Based on the descriptions above, the type of simple tissue that is commonly found in both the fruit walls of nuts and the pulp of a pear is Sclereids.