Nuclear material of bacterial cell is known as

Options

A. Nucleus
B. Nucleolus
C. Plasmid
D. Nucleoid.

Answer

To answer the question "Nuclear material of bacterial cell is known as," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Bacterial Cells**:
- Bacteria are prokaryotic organisms, meaning they lack membrane-bound organelles, including a true nucleus.

2. **Identify the Nuclear Material in Bacteria**:
- In the absence of a true nucleus, bacteria contain a region where their genetic material is located. This region is not surrounded by a membrane.

3. **Define the Term for Bacterial Nuclear Material**:
- The nuclear material in bacterial cells is referred to as the "nucleoid." This is where the single circular DNA molecule is found.

4. **Examine the Options Provided**:
- Option 1: Nucleus - Incorrect, as bacteria do not have a true nucleus.
- Option 2: Nucleolus - Incorrect, as nucleolus is found within a nucleus, which bacteria lack.
- Option 3: Plasmid - Incorrect, as plasmids are extra-chromosomal DNA, not the main nuclear material.
- Option 4: Nucleoid - Correct, as this is the term used for the nuclear material in bacterial cells.

5. **Conclude the Answer**:
- Therefore, the nuclear material of a bacterial cell is known as the **nucleoid**.

### Final Answer:
The nuclear material of bacterial cell is known as **nucleoid**.

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