Question

Бічний корінь-це помогите

Answer 1

Бічний корінь - це коріння, що розвиваються збоку головного кореня (бічні корені першого порядку) або збоку придаткових коренів і бічних коренів першого порядку (бічні корені другого та наступних порядків).

Answer 2

What is a lateral root?

A lateral root is a type of root that grows horizontally from the primary root of a plant. It emerges from the pericycle, which is a layer of cells in the root. Lateral roots play a crucial role in anchoring the plant in the soil and absorbing water and nutrients. They also contribute to the overall stability and growth of the plant.

How do lateral roots form?

The formation of lateral roots involves a complex process known as lateral root development. It begins with the initiation of a lateral root primordium, which is a small group of cells that will eventually develop into a lateral root. The primordium grows and elongates, eventually breaking through the outer layers of the primary root to emerge as a fully formed lateral root.

The process of lateral root development is regulated by various genetic and hormonal factors. Auxin, a plant hormone, plays a crucial role in the initiation and growth of lateral roots. It accumulates in specific regions of the primary root, triggering the formation of lateral root primordia. Other hormones, such as cytokinins and ethylene, also influence lateral root development.

What are the functions of lateral roots?

Lateral roots serve several important functions in plants:

1. Anchorage: Lateral roots help anchor the plant in the soil, providing stability and preventing the plant from being uprooted by wind or other external forces.

2. Water and nutrient absorption: Lateral roots increase the surface area of the root system, allowing for greater absorption of water and nutrients from the soil. This is essential for the plant's growth and survival.

3. Exploration of soil: Lateral roots explore the surrounding soil, searching for water and nutrients. They can grow in different directions, enabling the plant to access resources from a larger area.

4. Transport of substances: Lateral roots transport water and nutrients from the soil to the rest of the plant. They connect with the vascular system of the primary root, allowing for the movement of substances throughout the plant.

Conclusion

Lateral roots are an important component of a plant's root system. They contribute to the plant's stability, water and nutrient absorption, exploration of the soil, and transport of substances. The formation and development of lateral roots are regulated by genetic and hormonal factors, with auxin playing a key role.