Read the given statements and select the correct option.Statement 1: R...
Protecting the root apical meristem allows for primary growth in the root, which paves the way for lengthening of the plant as well as cell specialization. Like a hard hat for the root tip, the root cap is a thimble-shaped structure that protects delicate, actively dividing cells.
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Read the given statements and select the correct option.Statement 1: R...
Statement 1: Root cap protects the root meristem from the friction of the soil and its outer cells are continuously replaced by newer ones.
The root cap is a protective structure located at the tip of the root. Its main function is to protect the delicate root meristem, which is responsible for growth and development, from the friction and abrasion caused by the soil particles. The root cap consists of several layers of cells, with the outermost layer being the most important for protection.
Statement 2: The effect of the soil-friction damages the outer cells of the root cap which are peeled off and replaced by new cells produced by the root meristem.
As the root pushes through the soil, it encounters resistance and friction from the soil particles. This friction can cause damage to the outer cells of the root cap. These damaged cells are then sloughed off or peeled off, exposing the inner layers of the root cap.
The root meristem, located just behind the root cap, is responsible for the continuous production of new cells. As the outer cells of the root cap are damaged and lost, the root meristem replaces them by producing new cells. These new cells are then pushed outward, replacing the damaged cells and maintaining the protective function of the root cap.
Explanation:
Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.
Statement 1 states that the root cap protects the root meristem from the friction of the soil and its outer cells are continuously replaced by newer ones. This is true as the root cap acts as a barrier between the soil and the delicate root meristem, preventing damage and allowing for proper growth. The outer cells of the root cap are constantly being replaced to ensure the continuous protection of the root meristem.
Statement 2 explains how the soil-friction damages the outer cells of the root cap and how they are replaced by new cells produced by the root meristem. The friction of the soil causes damage to the outer cells of the root cap, which are then peeled off or sloughed off. The root meristem, located just behind the root cap, continuously produces new cells to replace the damaged ones.
Therefore, statement 2 provides a correct explanation for statement 1, as it describes the process by which the root cap is continuously replenished with new cells to maintain its protective function.
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