[A]: Xylem translocates water and dissolved mineral salts from the roots to the rest of the plant.
[R]: Phoem translocates dissolved organic and inorganic solutes

Options

A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false

Answer

To address the question regarding the functions of xylem and phloem in plants, we can break down the information into a step-by-step explanation.

### Step-by-Step Solution:

1. **Understanding Xylem Function**:
- Xylem is a type of vascular tissue in plants responsible for the transport of water and dissolved mineral salts.
- It primarily transports these substances from the roots, where water is absorbed from the soil, to the rest of the plant, including stems and leaves.

2. **Mechanism of Xylem Transport**:
- The transport of water and minerals through xylem occurs via a process called transpiration, which creates a negative pressure that pulls water upwards.
- The minerals are dissolved in the water and are taken up by the roots through diffusion, which does not require energy.

3. **Understanding Phloem Function**:
- Phloem is another type of vascular tissue that translocates dissolved organic and inorganic solutes, primarily the products of photosynthesis, such as sucrose.
- This transport occurs from the leaves (where photosynthesis takes place) to other parts of the plant, including roots and fruits.

4. **Mechanism of Phloem Transport**:
- The transport in phloem is bidirectional and requires energy in the form of ATP because it often moves substances against a concentration gradient.
- This process is known as translocation and involves companion cells that help in loading and unloading the sugars.

5. **Evaluating the Statements**:
- Both statements [A] and [R] are true:
- [A]: Xylem translocates water and dissolved mineral salts from the roots to the rest of the plant.
- [R]: Phloem translocates dissolved organic and inorganic solutes.
- However, the reason provided in statement [R] does not serve as a correct explanation for statement [A]. While both processes are essential for plant function, they operate independently and serve different purposes.

### Conclusion:
- In summary, xylem is responsible for transporting water and minerals, while phloem is responsible for transporting organic nutrients. Both are vital for the plant's overall health and functioning, but they do not explain each other’s processes.