Summary:
- 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) Plant cells grow through a combination of cell growth and cell division (mitosis) Meristems are found at the apex, or tip, of roots and buds, allowing roots and stems to grow in length and leaves and flowers to differentiate.