Plant Tissues : Simple Permanent | Tissues | Assessment | English | Grade 9

Which of the following is not the tissue of the plant whose cells are fully mature that cannot divide further?

• Meristematic tissue

• Permanent tissue

• Simple permanent tissue

• Complex permanent tissue

Answer explanation

The tissue of the plant whose cells are fully mature which cannot divide is called permanent tissue. So simple permanent tissue and complex permanent tissue are types of permanent tissue. Hence option 1 is correct answer.

Which tissue provides protection to the plant?

• Parenchyma

• Collenchyma

• Sclerenchyma

• Both option 2 and option 3

Answer explanation

In plant, parenchyma store food, water and essential substances. Collenchyma provides flexibility to plant. Sclerenchyma provides protection to plant.

The stem of plants bends easily without breaking. This is because of the presence of:

• Parenchyma

• Collenchyma

• Sclerenchyma

• Epidermis

Answer explanation

Collenchyma provides flexibility to plants. That's why the stem of plants bends easily without breaking. Hence option 2 is the right answer.

Some aquatic plants can float on water due to the presence of:

• Aerenchyma

• Collenchyma

• Chlorenchyma

• All of these

Answer explanation

Aerenchyma is the type of parenchyma in which large air cavities are present. Due to presence of air cavities the plant can float on water. Therefore due to presence of aerenchyma, aquatic plant can float on water.

The cortex of the plants is air and water resistant due to the presence of:

• Lignin

• Suberin

• Chitin

• All of these

Answer explanation

The cortex of the plants is air and water resistant due to the presence of suberin

Identify the plant tissue shown in the following figure.

• Parenchyma

• Chlorenchyma

• Collenchyma

• Sclerenchyma

Answer explanation

In the given figure we can see that in the tissue, the wall of cells on the corners are irregularly thick and there is very little space between the cells. We know that the cells of collenchyma are irregularly thick at corners. Therefore we can say that the given figure is of collenchyma tissue.

Rahul wants to observe the epidermal cells under a microscope. Then Rahul should:

• Cut the stem horizontally

• Cut the stem vertically

• Cut the stem transversely

• Peel the leaf

Answer explanation

We know that the epidermis is the outermost layer of plant. So to observe the epidermis one should take the outermost layer of plant. Therefore to observe the epidermal cells under a microscope, Rahul should peel the leaf.