Short distance transport of metabolites is done through

Options

A. companion cells
B. parenchyma cells
C. albuminous cells
D. transfer cells

Answer

**Step-by-Step Solution:**

1. **Understanding Short Distance Transport**: Short distance transport of metabolites refers to the movement of substances over small distances within the plant tissues. This is crucial for the distribution of nutrients and other metabolites.

2. **Identifying Key Cells**: In plants, there are specific types of cells that facilitate the short distance transport of metabolites. These include:
- Companion cells
- Albuminous cells
- Transfer cells

3. **Role of Companion Cells**: Companion cells are found in the phloem and are primarily involved in the transport of food (sugars) from the source (like leaves) to the sink (like roots and fruits). They assist in loading and unloading sugars into the sieve tubes.

4. **Role of Albuminous Cells**: Albuminous cells are also associated with the phloem and are known for their role in protein storage and transport. They help in the transport of nutrients but are not primarily focused on metabolite transport.

5. **Role of Transfer Cells**: Transfer cells are specialized parenchyma cells that have adaptations (like wall ingrowths) to enhance their surface area for the efficient transfer of substances. They are specifically designed for short distance transport of metabolites.

6. **Conclusion**: Among the options, transfer cells are the most specialized for short distance transport of metabolites. Therefore, the answer to the question is that short distance transport of metabolites is primarily done through **transfer cells**.

**Final Answer**: Transfer cells (Option 4) are responsible for the short distance transport of metabolites.

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