Network of proteinaceous filaments present in cytoplasm is known as

Options

A. Endoplasmic reticulum
B. cytoplasm
C. Cytoskeleton
D. cell - organelles

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the name of the network of proteinaceous filaments present in the cytoplasm of a cell.

2. **Identifying Key Terms**: The key terms in the question are "network," "proteinaceous filaments," and "cytoplasm."

3. **Exploring the Cytoplasm**: The cytoplasm is the thick solution that fills each cell, enclosed by the cell membrane. It contains various components, including water, salts, and proteins.

4. **Identifying the Structure**: In the cytoplasm, there is a structure known as the cytoskeleton. The cytoskeleton is an elaborate network of protein filaments and tubules that provides structural support to the cell.

5. **Defining the Cytoskeleton**: The cytoskeleton is composed of three main types of protein filaments:
- Microfilaments (actin filaments)
- Intermediate filaments
- Microtubules

6. **Functions of the Cytoskeleton**: The cytoskeleton is involved in various functions, including:
- Providing mechanical support to the cell
- Facilitating cell motility (movement)
- Maintaining the shape of the cell

7. **Conclusion**: Therefore, the network of proteinaceous filaments present in the cytoplasm is known as the **cytoskeleton**.

### Final Answer:
The network of proteinaceous filaments present in the cytoplasm is known as the **cytoskeleton**.

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