Meristematic tissues divide repeatedly. What property of their cells allows them to do this?

The correct answer is : (iii) They have thin walls, dense cytoplasm and large prominent nucleus.

Explanation

Meristematic tissue is a tissue that is made up of actively dividing cells which continuously divide and help in the growth of the plant.

Reason:

• Thin cell walls → It makes faster growth and division.
• Dense cytoplasm → It contains the cell organelles and materials needed for rapid cell division.
• Large prominent nucleus → It helps in faster cell division and other activities.
• Very small or no vacuoles →Inside the cell, most of the cell space is occupied by cytoplasm and nucleus.

Functions of Meristematic Tissue

1. Increase in length – Apical meristem which increases the length of roots and shoots.
2. Increase in girth – Lateral meristem responsible for increases the thickness or girth of stems and roots.
3. Regrowth after cutting or breaking – Meristematic cells divide and help in the formation of new tissues which allows plants to grow again after cutting or injury.