Protoplasm of the cell is differentiated into centroplasm and chromoplasm-in

Options

A. Bacteria
B. Algae
C. Cyanobacteria
D. Mycoplasma

Answer

To answer the question about the differentiation of protoplasm into centroplasm and chromoplasm, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Protoplasm**:
- Protoplasm is the living substance of a cell, which includes all the contents within the cell membrane. It is primarily composed of cytoplasm and the nucleus.

2. **Differentiation of Protoplasm**:
- Protoplasm can be differentiated into two parts: **centroplasm** and **chromoplasm**.

3. **Defining Centroplasm**:
- Centroplasm refers to the inner, colorless part of the protoplasm. It contains food granules and acts similarly to a nucleus in cells that do not have a true nucleus. It is often referred to as an "incipient nucleus" because it performs some functions of a nucleus but lacks a nuclear membrane.

4. **Defining Chromoplasm**:
- Chromoplasm is the outer, colored part of the protoplasm. It contains pigments, such as chlorophyll, which are essential for photosynthesis. This part of the protoplasm is responsible for the preparation of food in photosynthetic organisms.

5. **Identifying Organisms with Centroplasm and Chromoplasm**:
- The question asks which organisms have their protoplasm differentiated into centroplasm and chromoplasm. The options provided include bacteria, algae, cyanobacteria, and microplasma.
- Among these, **cyanobacteria** (specifically the genus Anabaena) exhibit this differentiation. They are known for their nitrogen-fixing abilities and have a structure that allows for the presence of both centroplasm and chromoplasm.

6. **Conclusion**:
- Therefore, the correct answer to the question is **cyanobacteria**.

### Final Answer:
The protoplasm of the cell is differentiated into centroplasm and chromoplasm in **cyanobacteria**.

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