Plectenchyma is a tissue composed of

Options

A. Parenchyma
B. Collenchyma
C. Myceliel threads of fungi
D. Tracheids in higher plants.

Answer

**Step-by-Step Solution:**

1. **Understanding Plectenchyma**: Plectenchyma is a type of tissue found in fungi. It is important to recognize that it is a false tissue formed by the fusion of multicellular hyphae.

2. **Analyzing the Options**:
- **Option A: Parenchyma**: This is a type of ground tissue in plants, characterized by living cells that are involved in various functions like storage and photosynthesis. It does not relate to plectenchyma.
- **Option B: Collenchyma**: This tissue is also found in plants and consists of living cells with unevenly thickened walls, providing support. It is not related to plectenchyma.
- **Option C: Mycelial threads of fungi**: This option refers to the network of hyphae that make up the body of fungi. Plectenchyma is indeed composed of these mycelial threads, making this option correct.
- **Option D: Tracheids in higher plants**: Tracheids are a type of water-conducting cell in the xylem of vascular plants. They are not related to plectenchyma.

3. **Conclusion**: After analyzing all the options, it is clear that the correct answer is **Option C: Mycelial threads of fungi**. Plectenchyma is composed of these threads, which form the structure of the tissue.