All statements given are exclusive characters of meristematic cells, except

Options

A. Dense protoplasm and absence of vacuoles
B. Isodiametric shape with no intercellular spaces
C. Colourless proplastids and a bigger nucleus
D. Metabolically less active or inert with a thin cellulosic wall

Answer

To solve the question regarding the exclusive characteristics of meristematic cells, we need to analyze the statements provided and identify the one that does not belong to the characteristics of meristematic cells. Here’s a step-by-step breakdown of how to approach this question:

### Step-by-Step Solution:

1. **Understand Meristematic Cells**:
- Meristematic cells are undifferentiated cells in plants that have the ability to divide and give rise to various types of plant tissues. They are crucial for growth.

2. **Identify Key Characteristics**:
- **Self-Renewing**: Meristematic cells can divide to produce one meristematic cell and one differentiated cell.
- **Metabolically Active**: These cells are actively involved in metabolic processes, which supports their rapid division.
- **Thin Cell Walls**: The cell walls of meristematic cells are generally thin, allowing for flexibility and growth.
- **Small Size and No Vacuoles**: Meristematic cells are typically small and do not contain large vacuoles, which is a characteristic that distinguishes them from mature cells.
- **Large Prominent Nucleus**: They possess a large nucleus that is prominent, as it contains the genetic material necessary for cell division.

3. **Evaluate Each Statement**:
- Review the statements provided in the question. Identify which statement contradicts the known characteristics of meristematic cells.

4. **Identify the Incorrect Statement**:
- From the analysis, if a statement claims that meristematic cells are "metabolically less active and inert within the cellulosic wall," this is incorrect. Meristematic cells are, in fact, metabolically active.

5. **Select the Correct Answer**:
- Based on the evaluation, the statement that is not an exclusive characteristic of meristematic cells is the one that states they are "metabolically less active and inert within the cellulosic wall."

### Final Answer:
The statement that is not an exclusive character of meristematic cells is: "Metabolically less active and inert within the cellulosic wall."

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