Movement of soluble materials through the vascular tissues of
plants is

Options

A. Transpiration
B. Transcription
C. Transduction
D. Translocation.

Answer

To solve the question regarding the movement of soluble materials through the vascular tissues of plants, we can follow these steps:

### Step 1: Understand the Question
The question asks about the movement of soluble materials in plants, specifically through their vascular tissues.

### Step 2: Analyze the Options
We have four options to consider:
1. **Transpiration**
2. **Transcription**
3. **Transduction**
4. **Translocation**

### Step 3: Define Each Term
- **Transpiration**: This is the process of water vapor loss from plant leaves through small openings called stomata. It does not involve the movement of soluble materials.

- **Transcription**: This refers to the process of synthesizing RNA from a DNA template. This is a molecular biology process and not related to the movement of materials in plants.

- **Transduction**: This is the process by which genetic material is transferred from one bacterium to another via viruses. This term is not applicable to plant vascular tissues.

- **Translocation**: This is the movement of soluble products, such as sugars and nutrients, through the vascular tissues (specifically phloem) of plants.

### Step 4: Identify the Correct Answer
Based on the definitions:
- Transpiration, transcription, and transduction do not relate to the movement of soluble materials in plants.
- Translocation specifically refers to this movement.

Thus, the correct answer is **D. Translocation**.

### Summary
The movement of soluble materials through the vascular tissues of plants is known as **translocation**.

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