Question

Find out the incorrect sentence.

• A. Parenchymatous tissues have intercellular spaces.
• B. Collenchymatous tissues are irregularly thickened at corners.
• C. Apical and intercalary meristems are permanent tissues.

Answer 1

The correct option is C

Apical and intercalary meristems are permanent tissues.

The correct option is C:

Explanation for correct option:

1. The apical meristem is located at the tips of roots and shoots. The intercalary meristem is present at internodes.
2. They are primary meristems and are not permanent tissues.
3. They are present during the initial growth phase of the plants and help form the primary plant body.
4. Permanent tissues are tissues that have completed the growth and differentiation process. They are incapable of meristematic activity.

Explanation for incorrect options:

Option A:

1. The parenchyma cells are present in the roots and stem and are involved in the storage of food and water.
2. The intercellular air spaces present between them help in the exchange of materials.

Option B:

1. Collenchymatous tissue is the mechanical tissue of plants.
2. They are thin-walled but contain cellulose, pectin, and water at the corners where the cells join together.
3. Thus, the cells appear elongated and irregularly thickened at corners.

Final answer: Apical and intercalary meristems are permanent tissues is incorrect.