Phelloderm consists of

Options

A. living parenchymatous cells
B. dead sclerenchymatous cells
C. both (1) and (2)
D. collenchyma cells

Answer

**Step-by-Step Solution:**

1. **Understanding Phelloderm**: Phelloderm is a layer that is part of the cork tissue in plants. It is located beneath the cork (phellum) and is formed by the activity of the phellogen.

2. **Identifying Phellogen**: Phellogen, also known as cork cambium, is a layer of actively dividing cells. It is responsible for producing new cells both outwardly (to form cork) and inwardly (to form phelloderm).

3. **Formation of Phelloderm**: As phellogen divides, it adds new cells towards the inner side of the plant. These newly formed cells constitute the phelloderm.

4. **Characteristics of Phelloderm**: The phelloderm is made up of living cells, specifically parenchyma cells. These cells are typically involved in storage and can also play a role in photosynthesis.

5. **Distinction from Other Layers**: It is important to note that while the outer layer (cork or phellum) consists of dead cells, the phelloderm is composed of living cells. This distinction is crucial in understanding the structure of the cork.

6. **Conclusion**: Therefore, the phelloderm consists of living parenchymatous cells.

**Final Answer**: Phelloderm consists of living parenchymatous cells.

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