An elaborate network of filamentous …………….structures present in the cytoplasm is collectively referred to as the ………………

Options

A. Cytoskeleton, proteinaceous
B. Proteinaceous, Cytoskeleton
C. Lipoidal, Mitochondria
D. Lipoidal, plasma membrane

Answer

**Step-by-Step Solution:**

1. **Identify the Key Terms**: The question refers to an "elaborate network of filamentous structures" in the cytoplasm. This indicates a structural component of the cell.

2. **Understanding the Context**: The term "cytoplasm" suggests we are discussing components within the cell, specifically structures that provide support and shape.

3. **Recognizing the Correct Terminology**: The term "cytoskeleton" is commonly used to describe the network of filamentous structures in the cytoplasm. It is made up of proteins.

4. **Defining the Components**: The cytoskeleton consists of three main types of filamentous structures:
- **Microfilaments**: Thin filaments primarily made of actin.
- **Intermediate filaments**: Provide mechanical support.
- **Microtubules**: Hollow tubes that help with cell shape and transport.

5. **Combining the Terms**: Since the question specifically mentions "proteinaceous structures," it is appropriate to refer to the cytoskeleton as "proteinaceous cytoskeleton," emphasizing that it is made of proteins.

6. **Final Answer**: Therefore, the complete answer to the question is: "An elaborate network of filamentous proteinaceous structures present in the cytoplasm is collectively referred to as the proteinaceous cytoskeleton."

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