NEET BIOLOGY

Detailed explanation-1: -apical meristem, region of cells capable of division and growth in the root and shoot tips in plants. Apical meristems give rise to the primary plant body and are responsible for the extension of the roots and shoots.

Detailed explanation-2: -The key to plant growth is meristem, a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate. Meristem allows plant stems and roots to grow longer (primary growth) and wider (secondary growth).

Detailed explanation-3: -Primary growth is the increase in the length of root and shoot. It is the result of cell division of apical meristem. So, the correct option is ‘Primary growth’.

Detailed explanation-4: -What are the characteristics of apical meristems? They are made of undifferentiated cells that are capable of cell division. They are present in the tips of roots and shoots.

Detailed explanation-5: -A: A plant grows new tissue from an apical meristem. The apical meristem is a group of cells that retain the ability to continue divisions, forming new cells continuously as the plant grows. This PRIMARY growth is responsible for growth in height.