The living and non-lignified component of vascular bundle is/are

Options

A. Vessel and tracheids
B. Vessel and phloem
C. Wood fibre and phloem
D. Wood parenchyma and sieve tube

Answer

To answer the question regarding the living and non-lignified component of vascular bundles, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Vascular Bundles**:
- Vascular bundles are the strands of vascular tissue in plants, which include xylem and phloem.
- They are responsible for the transport of water, nutrients, and food throughout the plant.

2. **Components of Vascular Bundles**:
- Vascular bundles primarily consist of two 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, and it is typically lignified (contains lignin for strength and support).
- Phloem, on the other hand, is responsible for the transport of organic nutrients, particularly sugars, and is made up of living cells.

3. **Identifying Living and Non-Lignified Components**:
- The living and non-lignified component of vascular bundles is primarily the phloem.
- Phloem consists of sieve tubes, companion cells, and phloem fibers, which are all living tissues and do not have lignin.

4. **Conclusion**:
- Therefore, the living and non-lignified component of vascular bundles is the phloem.

### Final Answer:
The living and non-lignified component of vascular bundles is the phloem.

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