In each vascular bundle, the tissue nearest to the centre of the stem is -

Options

A. Phloem
B. Fibres
C. Vascular cambium
D. Xylem

Answer

To answer the question "In each vascular bundle, the tissue nearest to the centre of the stem is -", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Vascular Bundles**:
- Vascular bundles consist of two main types of tissues: xylem and phloem.
- Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant, while phloem transports nutrients and sugars produced by photosynthesis.

2. **Identify the Arrangement of Tissues**:
- In a typical vascular bundle, the xylem is located towards the center of the stem, and the phloem is located towards the outer side.
- There is also a layer of cambium present between the xylem and phloem, which is responsible for secondary growth.

3. **Determine the Tissue Nearest to the Center**:
- Since xylem is positioned inside the vascular bundle and phloem is outside, the tissue that is nearest to the center of the stem is the xylem.

4. **Eliminate Incorrect Options**:
- Phloem is incorrect because it is located outside the xylem.
- Fibers are also incorrect as they do not occupy the central position.
- Vascular cambium is incorrect because it is located between xylem and phloem, not at the center.

5. **Conclude the Answer**:
- Therefore, the correct answer to the question is xylem.

### Final Answer:
The tissue nearest to the centre of the stem in each vascular bundle is **xylem**.

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