The form of sugar transported through phloem is

Options

A. glucose
B. fructose
C. sucrose
D. cellulose

Answer

To determine the form of sugar transported through the phloem, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Function of Phloem**:
- Phloem is part of the vascular system in plants, primarily responsible for the transport of nutrients, particularly sugars, throughout the plant.

2. **Identify the Source of Sugars**:
- Sugars are synthesized in the leaves of the plant during the process of photosynthesis. The primary sugar produced is glucose.

3. **Know the Form of Sugar in Transport**:
- While glucose is produced in the leaves, it is often converted into a more stable form for transport. In plants, glucose molecules can combine to form disaccharides.

4. **Recognize the Main Sugar Transported**:
- The most common disaccharide formed from glucose is sucrose. Sucrose is the primary form of sugar that is transported through the phloem to various parts of the plant.

5. **Eliminate Incorrect Options**:
- Glucose and fructose are monosaccharides and are not typically transported directly in their free form. Cellulose, on the other hand, is a structural component of the plant cell wall and is not transported through the phloem.

6. **Conclude with the Correct Answer**:
- Therefore, the correct answer to the question is that the form of sugar transported through the phloem is **sucrose**.

### Final Answer:
The form of sugar transported through phloem is **sucrose**.