Under a microscope Paheli observes a cell that has a cell wall but no distinct nucleus. The cell that she observes is

Options

A. a plant cell
B. a nerve cell
C. an animal cell
D. a bacterial cell

Answer

To determine the type of cell that Paheli observed under the microscope, we can follow these steps:

### Step-by-Step Solution:

1. **Observation of the Cell**: Paheli sees a cell that has a cell wall but lacks a distinct nucleus. This is a crucial observation because it helps narrow down the types of cells.

2. **Understanding Cell Types**: Cells can be broadly classified into two categories: prokaryotic and eukaryotic cells.
- **Prokaryotic Cells**: These cells do not have a well-defined nucleus or membrane-bound organelles. They typically have a simpler structure and include bacteria.
- **Eukaryotic Cells**: These cells have a well-defined nucleus and membrane-bound organelles. Examples include plant cells, animal cells, and nerve cells.

3. **Analyzing the Characteristics**:
- Since the observed cell has a **cell wall**, it could potentially be a plant cell or a bacterial cell. However, plant cells are eukaryotic and possess a well-defined nucleus.
- The absence of a distinct nucleus suggests that the cell is not a eukaryotic cell.

4. **Evaluating the Options**:
- **Plant Cell**: Incorrect, as it has a defined nucleus.
- **Nerve Cell**: Incorrect, as it has a defined nucleus.
- **Animal Cell**: Incorrect, as it has a defined nucleus.
- **Bacterial Cell**: Correct, as it is a prokaryotic cell with a cell wall and no defined nucleus.

5. **Conclusion**: The cell that Paheli observed is a **bacterial cell**.

### Final Answer:
The cell that Paheli observes is a **bacterial cell**.