Explanation:

Plant growth is a complex process that involves various physiological and biochemical changes. Growth in plants is largely restricted to specialised regions of active cell division called meristem. This statement can be explained in detail as follows:

What is Meristem?
Meristem is a type of plant tissue that is responsible for the growth of new cells and tissues. It is a region of undifferentiated cells that are capable of dividing and differentiating into various cell types. Meristem is found in the tips of roots, shoots, and in the cambium layer of stems.

Types of Meristem:
There are two types of meristem:

1. Apical Meristem: It is found at the tips of roots and shoots and is responsible for primary growth.

2. Lateral Meristem: It is found in the cambium layer of stems and is responsible for secondary growth.

Function of Meristem:
Meristem is responsible for the growth and development of plants. It produces new cells that differentiate into various tissues and organs such as leaves, stems, and roots. Meristem also plays a crucial role in the repair and regeneration of damaged tissues.

Importance of Meristem:
Meristem is important for plant growth and development. It allows plants to adapt to changing environmental conditions by producing new tissues and organs. Meristem also plays a crucial role in the production of fruits and seeds, which are essential for plant reproduction.

Conclusion:
In conclusion, growth in plants is largely restricted to specialised regions of active cell division called meristem. Meristem is responsible for the growth and development of plants and plays a crucial role in plant adaptation, repair, and reproduction. Understanding the functions and types of meristem is important for the study of plant physiology and agriculture.

Meristem- a region where active cell division by meristematic cells occurs..when these cells lose the capacity to divide they differentiate to form permanent cells..so growthin plants is mainly restricted to specialised regions ..MERISTEMS..