The _____ is the centremost tissue in a dicot stem.

Options

A. Pith
B. Xylem
C. Phloem
D. Pericycle

Answer

To answer the question "The _____ is the centremost tissue in a dicot stem," we can follow these steps:

1. **Understand the Structure of a Dicot Stem**: A dicot stem has a specific arrangement of tissues. The outermost layer is the epidermis, followed by the cortex and then the endodermis.

2. **Identify the Layers Below the Epidermis**: After the endodermis, there are layers such as sclerenchyma and the pericycle. These layers are important but are not the central tissue.

3. **Locate the Vascular Tissues**: Beneath the pericycle, we find the phloem. The phloem is responsible for transporting nutrients, but it is not the central tissue.

4. **Identify the Cambium and Xylem**: Below the phloem, there is the cambium, which is a layer of actively dividing cells. Underneath the cambium, we find the xylem, which is involved in water transport.

5. **Determine the Centremost Tissue**: The very center of the dicot stem is occupied by the pith. The pith is a type of ground tissue that is located at the center of the stem and is responsible for storage and support.

6. **Conclude the Answer**: Therefore, the centremost tissue in a dicot stem is the **pith**.

Final Answer: The pith is the centremost tissue in a dicot stem.

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