AP BIOLOGY

Detailed explanation-1: -The apical meristem, also known as the “growing tip, ” is an undifferentiated meristematic tissue found in the buds and growing tips of roots in plants. Its main function is to trigger the growth of new cells in young seedlings at the tips of roots and shoots and forming buds.

Detailed explanation-2: -Root apical meristem serves as the source of new cells for root growth. In the root apical meristem, the stem cell niche sustains pluripotent stems cells to ensure a constant supply of cells for continuous root growth.

Detailed explanation-3: -The shoot apical meristem (SAM) generates above-ground aerial organs throughout the lifespan of higher plants. In order to fulfill this function, the meristem must maintain a balance between the self-renewal of a reservoir of central stem cells and organ initiation from peripheral cells.

Detailed explanation-4: -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.

Detailed explanation-5: -The root apical meristem also gives rise to daughter cells that produce the three tissue systems of the root. New root apical meristems are initiated from tissue within the core of the root and emerge through the ground tissue and dermal tissue.