Quiescent center is the region root apex which is

Options

A. Acitvely dividing
B. Water absorption area
C. Inactive cells
D. Root hair cells

Answer

**Step-by-Step Solution:**

1. **Understanding the Quiescent Center**: The quiescent center is a specific region located at the root apex of a plant. It is characterized by a group of cells that are not actively dividing.

2. **Discovery**: The concept of the quiescent center was first observed by a scientist named Clowes in maize plants. This historical context helps in understanding the significance of the quiescent center in plant biology.

3. **Location**: The quiescent center is situated just below the meristematic zone of the root. The meristematic zone is where active cell division occurs, while the quiescent center is a zone of inactive cells.

4. **Characteristics of Cells**: The cells in the quiescent center have specific characteristics:
- They are inactive, meaning they do not divide.
- They possess light cytoplasm.
- They have small nuclei.
- The concentrations of RNA, DNA, and proteins in these cells are low.

5. **Function of the Quiescent Center**: The primary role of the quiescent center is to serve as a reserve of cells that can become active if the meristematic zone is damaged. This can occur due to various factors such as pathogen attacks or environmental stress.

6. **Conclusion**: Given the characteristics and functions of the quiescent center, the correct answer to the question is that the quiescent center is a zone of inactive cells located at the root apex.

**Final Answer**: The quiescent center is the region at the root apex which is a zone of inactive cells.

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