Apical meristem

Definition

Apical meristem is a region of actively dividing cells at the tips of roots and shoots in plants. It is responsible for primary growth, allowing the plant to increase in length.

5 Must Know Facts For Your Next Test

1. The apical meristem contains undifferentiated cells that can develop into various tissues.
2. It is found in both root tips and shoot tips, facilitating vertical growth.
3. Apical meristems are crucial for the formation of new leaves and flowers.
4. They play a key role in the differentiation process, where cells become specialized.
5. The activity of apical meristems is influenced by plant hormones such as auxins.

Review Questions

• What is the primary function of the apical meristem?
• Where are apical meristems located in a plant?
• How do apical meristems contribute to plant growth?

Related terms

Lateral Meristem: A region of cell division that contributes to the thickness or girth of the plant body, responsible for secondary growth.

Auxin: A plant hormone that regulates growth, particularly influencing cell elongation near the apical meristem.

Differentiation: The process by which unspecialized cells from the meristem develop into specialized tissues with specific functions.