Question

Which of the following meristems is derived from the promeristem?
A)Primary
B)Secondary
C)Apical
D)Both A and C

Answer 1

Hint: Promeristem is the meristem which is present in the plants from the embryonic stage. It contains dividing cells which give rise to the meristem which increases the length of the shoot. It gives rise to the first permanent tissue of the plant.

Complete answer:
To solve this question, we must know about the role of promeristem.
The meristematic tissue in the plant contains the undifferentiated cells which have the capacity to divide and develop into different tissues present in the plant. The cells divide till it becomes differentiated.

The pro meristem is present in the plants since the embryonic stage. It contains the cells which are responsible for the primary growth of the plants. The primary growth is facilitated by the primary meristem which helps in increasing the length of the plant. The primary meristem gives rise to the vascular tissue called the xylem and phloem.

The secondary meristem is derived from the primary meristem and it helps in increasing the width or girth of the plant. It gives rise to secondary xylem and phloem. This meristem is also known as lateral meristem. This meristem surrounds the established stem of the plant.
Apical meristem- It is derived from the primary meristem. The Apical meristem gives rise to flowers, leaves and also promotes the further growth of roots.

Hence, the correct answer is option (A)

Note: The meristem cells in the plants function as stem cells of animals as they have the capacity to dive and differentiate into any organ or tissue of the plant. The differentiated cells do not have the capacity to divide as they have also completed their dividing stage.