0
The very tip of the root is the root cap, a thimblelike cone of cells that protects the delicate, actively dividing cells of the apical meristem. The root's apical meristem has two roles: It replaces the cells of the root cap that are scraped away by the soil, and it produces the cells for primary growth. Cells produced during primary growth form three concentric cylinders of developing tissue (Figure 20-13). The outermost cylinder develops into the dermal tissue of the root. The middle cylinder-the bulk of the root tip-develops into the root's cortex (ground tissue). The innermost cylinder becomes the vascular tissue.
-Exploring life, Biology Textbook
What else can I help you with?
What is difference between primary growth and secondary growth?
Primary growth is when the stem or root of a plant gets lengthens, and secondary growth is when the stem/root gets thicker.
What does mitotic activity at the meristem root accomplish?
Primary growth
What is the maturation zone?
It is the area of primary root growth where cells differentiate.
What root develops after the radicle?
The root that develops after the radicle is the primary root. The primary root is the first root to emerge from the seed and is responsible for anchoring the plant in the soil and absorbing water and nutrients. It often gives rise to lateral roots that further support the plant's growth.
What is Major or primary root?
The major or primary root is the central root that develops from the seed during germination and anchors the plant in the soil. It typically grows downward and can give rise to secondary roots, forming a more extensive root system. This primary root is crucial for water and nutrient absorption, supporting the overall growth and stability of the plant. In some plants, such as taproots, the primary root is notably thicker and longer than the surrounding roots.
What happens in primary growth of a vascular plant?
Cells divide very rapidly at root and shoot apices
What is the zone of rapid cell division that produces growth and is found primary root and stem tips at?
The zone of rapid cell division that produces growth is called the apical meristem, which is found at the primary root and stem tips. This region contains undifferentiated cells that continuously divide to produce new cells for plant growth and development.
What elongation of root and stem forms what is known as?
The elongation of root and stem is known as primary growth. This process occurs at the tips of roots and stems, facilitated by the activity of apical meristems, which are regions of undifferentiated cells. Primary growth allows plants to increase in length, enabling them to access more nutrients, water, and light.
What does tract mean for root?
In the context of root anatomy, a root tract is a group of primary conductive tissues that transport water and nutrients from the soil to the rest of the plant. These tracts are composed of xylem and phloem tissues and are essential for plant growth and development.
Do secondary roots grow out of the primary root?
Yes, secondary roots grow out of the primary root in a branched pattern. The primary root is usually the first root to emerge from a seed and serves as the main root axis. Secondary roots branch out from the primary root to help anchor the plant in the soil and absorb water and nutrients.
What is a secondary root?
A root arising from primary root becomes a secondary root
What parts of the root may be thought of as a subsystem?
The root of a plant can be thought of as a subsystem consisting of several key parts: the primary root, lateral roots, and root hairs. The primary root anchors the plant and absorbs water and nutrients, while lateral roots increase the surface area for absorption and stability. Root hairs further enhance nutrient and water uptake by increasing the root's contact with the soil. Together, these components work as an integrated system to support the plant's overall growth and health.
